If `5cos theta+7sin theta=7` then `7cos theta-5sin theta`=

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

Find the maximum and minimum values of the following expressions (i) a cos theta-b sin theta( ii) 7cos theta+24sin theta

cos theta-cos7 theta=sin4 theta

If 5 cos theta -12 sin theta =0 , the value of (2 sin theta +cos theta )/(cos theta - sin theta ) यदि 5 cos theta -12 sin theta =0 , है, तो (2 sin theta +cos theta )/(cos theta - sin theta ) का मान ज्ञात करें |

If 3cos theta=5sin theta, then find the value of 5sin theta-2sec^(3)theta+2cos theta5sin theta+2sec^(3)theta-2cos theta

Prove the following: "sin" theta+"sin" 3theta+"sin" 5theta+"sin" 7theta=4 cos theta cos 2theta sin 4theta .

If 3 tan theta =4, show that ((4 cos theta -sin theta))/((a cos theta + sin theta ))=7/25

The number of values of theta in (0, pi] , such that (cos theta + i sin theta) (cos 3 theta + i sin 3 theta) (cos 5 theta + i sin 5 theta) (cos 7 theta + i sin 7 theta) (cos 9 theta + i sin 9 theta) = -1 is

(cos3 theta+2cos5 theta+cos7 theta)/(cos theta+2cos3 theta+cos5 theta)=cos2 theta-sin2 theta tan3 theta

64cos^(3)theta sin^(4)theta=cos7 theta-cos5 theta-3cos3 theta+3cos theta