...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal

Page 1 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/3.jpg' width='140' height='200' /> Page 4 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/4.jpg' width='140' height='200' /> Page 5 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=5' data-page='5' class='cut-thumb lazyload' alt='Page 5: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/5.jpg' width='140' height='200' /> Page 6 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=6' data-page='6' class='cut-thumb lazyload' alt='Page 6: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/6.jpg' width='140' height='200' /> Page 7 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=7' data-page='7' class='cut-thumb lazyload' alt='Page 7: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/7.jpg' width='140' height='200' /> Page 8 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=8' data-page='8' class='cut-thumb lazyload' alt='Page 8: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/8.jpg' width='140' height='200' /> Page 9 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=9' data-page='9' class='cut-thumb lazyload' alt='Page 9: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/9.jpg' width='140' height='200' /> Page 10 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=10' data-page='10' class='cut-thumb lazyload' alt='Page 10: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/10.jpg' width='140' height='200' /> Page 11 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=11' data-page='11' class='cut-thumb lazyload' alt='Page 11: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/11.jpg' width='140' height='200' /> Page 12 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=12' data-page='12' class='cut-thumb lazyload' alt='Page 12: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/12.jpg' width='140' height='200' /> Page 13 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=13' data-page='13' class='cut-thumb lazyload' alt='Page 13: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/13.jpg' width='140' height='200' /> Page 14 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=14' data-page='14' class='cut-thumb lazyload' alt='Page 14: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/14.jpg' width='140' height='200' /> Page 15 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=15' data-page='15' class='cut-thumb lazyload' alt='Page 15: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/15.jpg' width='140' height='200' /> Page 16 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=16' data-page='16' class='cut-thumb lazyload' alt='Page 16: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/16.jpg' width='140' height='200' /> Page 17 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=17' data-page='17' class='cut-thumb lazyload' alt='Page 17: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/17.jpg' width='140' height='200' /> Page 18 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=18' data-page='18' class='cut-thumb lazyload' alt='Page 18: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/18.jpg' width='140' height='200' /> DPP - 11

Trigonometry

Page 19 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=19' data-page='19' class='cut-thumb lazyload' alt='Page 19: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/19.jpg' width='140' height='200' /> 1. Prove that : cos4A - sin4 A + 1 = 2 cos2 A.

Page 20 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=20' data-page='20' class='cut-thumb lazyload' alt='Page 20: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/20.jpg' width='140' height='200' /> 2. Prove that : (sin A + cos A) (1 - sin A cos A) = sin3 A + cos2A.

Page 21 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=21' data-page='21' class='cut-thumb lazyload' alt='Page 21: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/21.jpg' width='140' height='200' /> 3. Prove that : cosec A. sinA 1+cosA

+ = 21+cosA sin

Page 22 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=22' data-page='22' class='cut-thumb lazyload' alt='Page 22: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/22.jpg' width='140' height='200' /> 4. Prove that : 2cosecA cosecA

+ = 2sec A.cosecA-1 cosecA +1

Page 23 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=23' data-page='23' class='cut-thumb lazyload' alt='Page 23: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/23.jpg' width='140' height='200' /> secA- tanA

secA +tanA5. Prove that : 1 - 2 sec A tan A + 2 tan2A .

Page 24 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=24' data-page='24' class='cut-thumb lazyload' alt='Page 24: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/24.jpg' width='140' height='200' /> 6. Prove that : cotA+tanB

= cot A tan B.cotB+tanA

Page 25 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=25' data-page='25' class='cut-thumb lazyload' alt='Page 25: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/25.jpg' width='140' height='200' /> 7. Prove that : 1 1 1 1

- = -cosecA-cotA sinA sinA cosecA +cotA

Page 26 <img data-url='document/-q-sin-x-cos-x-if-a-tan2x-c-tan2x-a-1-a-is-equal-to-cos-x-27-cos.html?page=26' data-page='26' class='cut-thumb lazyload' alt='Page 26: ...Q. sin x cos x If (A) tan2x = ? (c) tan2x = A 1 — , is equal to cos x 27 cos x 27 125 125 sin (B) sin (D) x x Q. sin230t - sin3u If a = , then the value of sin 16(1 + sin4a equal' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042202/5ea2e57eda89572bc676fb6c/html5/thumbnails/26.jpg' width='140' height='200' /> 8. Prove that : . tanA+secA-1 1+sinA