If `sqrt3sin theta+costhetagt0, then theta` lies in the interval

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

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

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

If y=4sin^(2)theta-cos2 theta, then y lies in the interval

If y =4sin^(2)theta-cos2theta ,then y lies in the interval

If Delta=|(1, sin theta, 1 ),(-sin theta, 1, sin theta),(-1 , -sin theta, 1)| then Delta lies in the interval

For -(pi)/(2)