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

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Sr.#	Question	Answer
1	One root of the equation cos x - x + 1/2 = 0 lies in the interval	A. B. C. D.
2		A. B. C. D.
3	cotθ= sin 2θifθ=	A. B. C. D.
4		A. B. C. D. none of these
5	The smallest positive root of the equation tan x - x = 0 lies on	A. B. C. D.
6		A. B. C. D.
7	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°
8	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
9	The number of points of intersection of two curves y = 2 sin x and y = 5x²+ 2x + 3 is	A. 0 B. 1 C. 2 D. None of these
10	The solution set of the equation 4 cos²x - 3 + 0 is	A. B. C. D. none of these
11		A. B. C. D.
12	The solution of the equation 3 tan²x = 1 is ____________	A. B. C. D. none of these
13	The solution of the equation cos²θ+ sinθ+ 1 = 0 lies in the interval	A. B. C. D.
14	cotθ= sin 2θifθ=	A. B. C. D.
15	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
16	The general solution of tan 3x = 1 is	A. B. C. D.
17	If Sin A = sin B, cos A = cos B, then the value of A in terms of B is	A. B. C. D.
18		A. B. C. D.
19		A. B. C. D. all
20		A. B. C. D.
21		A. B. C. D. none of these
22	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
23		A. B. C. D.
24		A. B. C. D.
25	The solution set of trigonometric equation contains	A. one element B. two elements C. three elements D. Infinite elements
26		A. B. C. D.