Q6 of 142 Page 11

Mark the Correct alternative in the following:
A solution of the equation cos² x + sin x + 1 = 0, lies in the interval

1-sin²x+sin x+1=0

sin²x-sin x-2=0

sin x=-1

Option D

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If a is any real number, the number of roots of cot x – tan x = a in the first quadrant is (are).

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The general solution of the equation 7 cos² x + 3 sin² x = 4 is

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The number of solution in [0, π/2] of the equation cos 3x tan 5x = sin 7x is

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The general value of x satisfying the equation is given by

Questions · 142

11. Trigonometric Equations

1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 9 9 10 10 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Mark the Correct alternative in the following:A solution of the equation cos2 x + sin x + 1 = 0, lies in the interval