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(i) ` sin 3 theta = sin 2 theta`
(ii) ` sin m theta + sin n theta = 0`
(iii) ` tan 3 theta tan theta = 1`

If tan theta + sin theta = m and tan theta - sin theta = n , then

Show that none of the following is an identity: (i) cos^(2) theta + cos theta =1 " " (ii) sin^(2) theta + sin theta =2 " " (iii) tan^(2) theta + sin theta = cos^(2) theta

( sin theta - 2 sin ^ 3 theta ) / (2 cos ^ 3 theta - cos theta ) = tan theta

If 3 tan ^(2) theta - 2 sin theta = 0 " then " theta =

If tan 2theta . Tan 3 theta =1 , then sin5theta =

(i) tan3 theta tan7 theta + 1 = 0 (ii) sin ^ (2) theta = sin ^ (2) alpha

Prove that: (sin theta - 2 sin^(3) theta) = (2cos^(3) theta - cos theta) tan theta .

If tan theta + sin theta = m , tan theta - sin theta = n then m^(2) -n^(2) is equal