If `sin theta - cos theta =0` then find `sin^9 theta +cos^9 theta`

If 3 sin theta + 4 cos theta=5 , then find the value of 4 sin theta-3 cos theta .

Find the number of solution for , sin 5 theta * cos 3 theta = sin 9 theta * cos 7 theta in [0,(pi)/2]

If f (theta) = [[cos^(2) theta , cos theta sin theta,-sin theta],[cos theta sin theta , sin^(2) theta , cos theta ],[sin theta ,-cos theta , 0]] ,then f ( pi / 7) is

If sin theta_1 + sintheta_2 + sin theta_3 = 3 then find the value of cos theta_1 + cos theta_2 + cos theta_3.

If x sin^3 theta+ y cos^3 theta = sin theta cos theta and x sin theta = y cos theta, Find the value of x^2 + y^2.

If a cos theta-b sin theta = c, then find the value of a sin theta + b cos theta.

Prove that : (1+ sin theta - cos theta) / (1+ sin theta + cos theta ) = tan (theta/2)

If cos2theta=0 , then |(0,costheta,sin theta),(cos theta, sin theta, 0),(sin theta, 0, cos theta)|^(2) is equal to…………

Find (dy)/(dx) if x=cos theta - cos 2 theta and" "y = sin theta - sin 2theta

Prove that : sin theta cos^3 theta - cos theta sin^3 theta = 1/4 sin4theta .