`sin4theta` can be written as

sin4 theta can be written as (a) 4sin theta(1-2sin^(2)theta)sqrt(1-sin^(2)theta)(b)2sin theta cos theta sin^(2)theta(c)4sin theta-6sin^(3)theta(d) None of the above

Show that cos theta((1)/(1-sin theta)-(1)/(1+sin theta)) can be written in the form k tan theta and find the value of ^( k.)

If cos2theta=sin4theta , where 2theta and 4theta are acute angles, find the value of theta .

If cos2theta=sin4theta , here 2theta and 4theta are acute angles, then the value of theta is

If cos7theta=costheta-sin4theta , then the general value of theta is

If cos7theta=costheta-sin4theta , then the general value of theta is

If sin theta+cos theta=a then sin ^(4) theta+cos ^(4) theta=

If (sin theta+cos theta)/(sin theta-cos theta)=3 then sin^4 theta-cos^4 theta=

If |[1+sin^(2)theta,cos^(2)theta,4sin4theta],[sin^(2)theta, 1+cos^(2)theta,4sin4theta],[sin^(2)theta,cos^(2)theta, 1+4sin4theta]|=0 , then the value of theta is