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12th Math chapter 2 Bihar board with NCERT-Details & Highlights
| name of content | 12th Math chapter 2 full solution |
| content | Math objective type MCQ question with answer |
| name of subjects | class 12 Math |
| important for exam | Bihar board & other state board |
| pattern & Level | NCERT & State level question |
12th Math chapter 2 all objective solutions – download PDF
1. If sin-1(x2 – 7x + 12) = nπ, ∀ n ∈ I, then x =
-
- (a) -2
- (b) 4
- (c) -3
- (d) 5
Ans (b)
2. If 6sin-1 (x2 – 6x + 8.5) = π, then x is equal to
-
- (a) 1
- (b) 2
- (c) 3
- (d) 8
Ans (b)
3. sin-1 (1 – x) – 2sin-1 x = π/2
-
- (a) 0
- (b) ½
- (c) 0, ½
- (d) -1/2
Ans (b)
4. 2tan-1(cos x) = tan-1(2cosec x)
-
- (a) 0
- (b) π/3
- (c) π/4
- (d) π/2
Ans (b)
5. The value of sin (2tan-1 (0.75)) is equal to
-
- (a) 0.75
- (b) 1.5
- (c) 0.96
- (d) sin 1.5
Ans (b)
6. Find the value of sec2 (tan-1 2) + cosec2 (cot-1 3)
-
- (a) 12
- (b) 5
- (c) 15
- (d) 9
Ans (b)