Write the formula :

`Sin( 3theta )`

If sin theta=(1)/(2), " write the value of " (3cot^(2)theta+3).

sin 7 theta * sin theta+sin11theta * sin 3theta= A) sin 4 theta * sin 10theta B) cos 4 theta * cos 10 theta C) sin 8 theta * sin 4 theta D) cos 8 theta * cos 14 theta

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

Write the acute angle theta satisfying sqrt(3)sin theta=cos theta

Taking theta=30^(@) , verify each of the following (i) sin 3theta=3sin theta -4sin^(3) theta (ii) cos3 theta=4cos^(3)theta-3cos theta

Write the value of sec^(2)theta(1+sin theta)(1-sin theta).

If sin theta =x, " write the value of " cot theta.

If 3 sin 2 theta = 2 sin 3 theta and 0 lt theta lt pi , then sin theta =

The value of (sin^3 theta + cos^3 theta)/(sin theta+ costheta)+((cos^3 theta - sin^3 theta))/(cos theta - sin theta) is

Prove that (sin theta + sin 3theta+ sin 5 theta + sin 7theta)/(cos theta + cos 3theta + cos 5 theta + cos 7theta) = (tan 3theta + tan theta)/(1 - tan 3theta tan theta) .