6.5 Double-Angle and Half-Angle Formulas. Theorem Double-Angle Formulas.
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6.5Double-Angle and Half-Angle Formulas
Theorem Double-Angle Formulas
Theorem Half-Angle Formulas
where the + or - sign is determined by the quadrant of the angle
Examples
Page 501: 11, 19, 29, 31, 51, 57, and 61
Assignment
Page 501: 10, 12, 16, 18, 22, 30, 52, 58, and 60
6.6 Product-to-Sum and Sum-to-Product Formulas
Theorem Product-to-Sum Formulas
(a)
(b)
Theorem Sum-to-Product Formulas
(a)
(b)
6.7 Trigonometric Equations (I)
Solve the equation
Assignment
Page 505: 2, 4, 12, 16, 20 Page 511: 6, 12 – 34 even
6.8 Trigonometric Equations (II)
Solving Trigonometric Equations Quadratic in Form
Solving Trigonometric Equations Using Identities
Solving Trigonometric Equations Linear in Sine and Cosine
Assignment
Page 518: 2 – 34 even and 46
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