Let `f(theta)=sintheta(sintheta+sin3theta)dot` Then `f(theta)` is (a)`geq0` only when `thetageq0` (b) `lt=0` for all real `theta` (c)`geq0` for all real `theta` (d) `lt=0` only when `thetalt=0`

int_0^(pi//2)(theta/sintheta)^2d theta=

Solve that equation : sintheta+sin3theta+sin5theta=0.

If 3tan^(2)theta-2sintheta=0 , then general value of theta is:

Show that int_0^(pi/2)sqrt((sin2theta))sintheta d theta=pi/4

Show that int_0^(pi/2)sqrt((sin2theta))sintheta d theta=pi/4

If the equation (lamda-1)x^2+(lamda+1)x+lamda-1=0 has real roots then lamda= (sintheta)/(costheta).(cos3theta)/(sin3theta) for (A) only one value of theta (B) for infinitely many values of theta (C) for no value of theta (D) of only two values of theta

Solve: sin 7 theta + sin 4 theta + sin theta = 0, 0 lt theta lt ( pi)/(2)

If rsintheta=3, r=4(1+sintheta) where 0<=theta<=2pi then theta equal to

If (sin 3theta)/(cos 2theta)lt 0 , then theta lies in

If theta in (0, 2pi) and 2sin^2theta - 5sintheta + 2 > 0 , then the range of theta is