Find the values of `x in (-pi,pi)` which satisfy the equation `8^(1+|cosx|+|cos^2x|+|cos^3x|+...))=4^3`

Let Ssub(0,pi) denote the set of values of x satisfying the equation 8^1+|cos x|+cos^2x+|cos^(3x| tooo)=4^3 . Then, S= {pi//3} b. {pi//3,""2pi//3} c. {-pi//3,""2pi//3} d. {pi//3,""2pi//3}

Let Ssub(0,pi) denote the set of values of x satisfying the equation 8^1+|cos x|+cos^2x+|cos^(3x| tooo)=4^3 . Then, S= {pi//3} b. {pi//3,""2pi//3} c. {-pi//3,""2pi//3} d. {pi//3,""2pi//3}

Find the value of x satisfying the equation 2cos^(-1)(1-x)-3cos^(-1)x=pi

Find the values of x in the interval [0,2pi] which satisfy the inequality: 3|2sinx-1|ge3+4cos^(2)x

Number of values of x in(-2pi,2pi) satisfying the equation 2^(sin^(2)x) +4. 2^(cos^(2)x) = 6 is

If 0 le x le 2pi , then the number of real values of x, which satisfy the equation cos x + cos 2x + cos 3x + cos 4x=0 , is

If 0 le x le 2pi , then the number of real values of x, which satisfy the equation cos x + cos 2x + cos 3x + cos 4x=0 , is

The value of x satisfying the equation cos^(-1)3x+sin^(-1)2x=pi is

The number of values of x lying in the inteval (-2pi, 2pi) satisfying the equation 1+cos 10x cos 6x=2 cos^(2)8x+sin^(2)8x is equal to

The number of values of x in [0,2pi] satisfying the equation |cos x – sin x| >= sqrt2 is