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then Cos 2x is Equal To

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Question

Solution

Correct option is

SIMILAR QUESTIONS

Q1

Let k = 1°, then 2 sin 2k + 4 sin 4k + 6 sin 6k +.....+ 180 sin 180k is equal to

Q2

If x, y > 0, then the range of

Q3

Number of solution of the equation  belonging to the interval (0, 1) is

Q4

The number of solution of

Q5

If times the sum of first n natural numbers is equal to sum of the squares of first n natural numbers.

Q6

If k­1 = sin x cos3 x and k2 = cos x sin3 x then

Q7

then ordered pair (x, y) is equal to

Q8

Number of solution of the equation tan x + sec x = 2 cos x. lying in the interval [0, 2π] is

Q9

The arithmetic mean of the roots of the equation 4 cos3 x – 4 cos2 x – cos (π + x) – 1 = 0 in the interval (0, 315) is equal to

Q10

The value of x between 0 and 2π which satisfy the equation  are in A.P. The common different of the A.P. is