If `4sin^2 theta=1` where `0 ltthetalt2pi`,= how many values does `theta`take?

If cos^2 theta - sin^2 theta = 1/3 , where 0 le theta le pi/2 , then the value of cos^4 theta - sin^4 theta is

If 5 cos 2 theta +2 cos^2 (theta/2)+1=0 , when (0 ltthetalt pi) , then the values of theta are :

If 2sin^(2)theta=3cos theta, where 0<=theta<=2 pi, then find the value of theta

If sin theta+cos theta=1/5and 0ltthetalt2pi,then tan thetais

If sin theta+cos theta=1/5and 0ltthetalt2pi,then tan thetais

If sin2theta=cos3theta, "where"0ltthetalt(pi)/(2) , then what is sin theta equal to ?

If f(theta) = sin(tan^(-1)(("sin theta)/(sqrt(cos 2 theta)))) , where -pi/4 lt theta lt pi/4 , then the value of d/(d(tan theta)) f(theta) is

If 6sin^(2)theta - sin theta = 1 and 0 le theta le pi , what is the value of sin theta ?

If sintheta.sec(30^(@)+theta)=1 where (0ltthetalt60^(@)) then the value of sintheta+cos2theta is :

If sin3 theta=sin theta, how many solutions exist such that -2 pi