[" Find the number of all values of "theta in[0,10.5]" satisfying the equation "],[cos6 theta+cos4 theta+cos2 theta+1=0]

1+cos2 theta+cos4 theta+cos6 theta=

The number of values of theta in [0,2 pi] satisfying the equation 2sin^(2)theta=4+3cos theta are

The number of values of theta in[0,2 pi] that satisfy the equation sin^(2)theta-cos theta=(1)/(4)

Find the values of theta betwen 0^(@) and 180^(@) satisying the equation cos6 theta+cos4 theta+cos2 theta+1=0

The number of values of theta in [0, 2pi] that satisfies the equation sin^(2)theta - cos theta = (1)/(4)

Writhe the number of values of theta in[0,2 pi] thast satisfy the equation sin^(2)theta-cos theta=(1)/(4)

Find all value of theta, between 0& pi, which satisfy the equation; cos theta*cos2 theta*cos3 theta=(1)/(4)

Find all value of theta , between 0 & pi , which satisfy the equation; cos theta * cos 2 theta * cos 3theta = 1/4 .

The number of values of theta in the range [0,2 pi] satisfying the equation cos^(4)2 theta+2sin^(2)2 theta=17(sin theta+cos theta)^(8) is