MARKING SCHEME (PRACTICE PAPER- 2) PART – A SECTION – I 1. {(1, 1), (2, 2), (3, 3), (4, 4)} OR 1 2. R = R -1 3. 2 OR 60 4. 2 , 4 5. I OR Null Matrix 6. 32 7. x e secx C OR tan x sec x C 8. 2 sq units 9. cot x OR 3 10. ^ ^ ^ 4i 2j 4k 11. 5/2 12. 2 13. 3 4 6 , , 55 55 55 14. 14 15. 0.75 16. 1/8 SECTION II 17. (i) B (ii) C (iii) D (iv) A (v) B 18. (i) D (ii) C (iii) B (iv) D (v) A PART – B SECTION III