ECAT Mathematics Chapter 16 online mcq test with answers for chapter 16 (Solution of Trigonometric Equation)

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Sr.#	Question	Answer
1		A. B. C. D.
2		A. 1 B. 2 C. 3 D. None of these
3	The solution set of sin x + cos x = 0 is	A. B. C. D.
4		A. trigonometric equation B. conditional equation C. identity D. None
5	The solution set of trigonometric equation contains	A. one element B. two elements C. three elements D. Infinite elements
6		A. B. C. D. none of these
7	If Sin A = sin B, cos A = cos B, then the value of A in terms of B is	A. B. C. D.
8		A. B. C. D.
9		A. B. C. D.
10		A. B. C. D.
11		A. A finite non-empty set B. Null set C. Both a and b D. None of these
12		A. B. C. D. none of these
13		A. B. C. D. none of these
14	In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then Ĉ is	A. 69° B. 66° C. 60° D. 63°
15		A. B. C. D.
16		A. B. C. D. both a & c
17		A. I andII quadrants B. II andIII quadrants C. II andIVquadrants D. none of these
18	Sine rule for a triangle states that	A. a/sin A = b/sin B = c/sin C B. sin A/a = sin B/b = sin C/c C. a/sin A + b/sin B + c/sin C D. 2a/sin A = 2b/sin B = 2c/sin C
19	By expressing sin 125° in terms of trigonometrical ratios, answer will be	A. sin 65° = 0.9128 B. sin 55° = 0.8192 C. sin 70° = 0.5384 D. sin 72° = 0.1982
20		A. B. C. D. none of these
21		A. 7 B. 5 C. 6 D. None of these
22	One root of the equation cos x - x + 1/2 = 0 lies in the interval	A. B. C. D.
23	In which quadrant is the solution of the equation sin x + 1 = 0	A. I andII quadrants B. II andIII quadrants C. III andIVquadrants D. none of these
24	The number of values of x in the interval [0, 5π] satisfying the equation 3 sin²x - 7 sinx + 2 = 0 is	A. 0 B. 5 C. 6 D. 10
25	The number of solution of the equation tan x + sec x = 2 cos x lying in the interval [0, 2π] is	A. 0 B. 1 C. 2 D. 3
26		A. B. C. D.