marking scheme (practice paper- 2)edustud.nic.in/edu/practicepaper_202021/xii/mathematics/... ·...
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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. xe sec x C OR tan x secx C
8. 2 sq units
9. cot x OR 3
10. ^ ^ ^
4 i 2 j 4 k
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
SECTION IV
2 1 x 1y(x 1) log C
2 x 1
SECTION – V
36.
OR
37.
OR.
38.
OR
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