Find the range of `f(theta)=5costheta+3cos(theta+pi/3)+3`

Solve cos theta+cos 2theta+cos 3theta=0 .

Solve (3 sin theta-sin 3 theta)/(sin theta)+(cos 3 theta)/(cos theta)=1 .

Range of f(theta)=cos^2theta(cos^2theta+1)+2sin^2theta is

If sin^(3) theta+sin theta cos theta+ cos^(3) theta=1 , then theta is equal to (n in Z)

Show that ((cos theta - cos 3theta)(sin 8theta + sin 2 theta))/((sin 5 theta - sin theta)(cos 4 theta - cos 6 theta)) = 1

Solve the following equation and find the value of theta . sqrt(3) sin theta- cos theta=sqrt(2) .

The value of the determinant |[sintheta, costheta, sin2theta] , [sin(theta+(2pi)/3), cos(theta+(2pi)/3), sin(2theta+(4pi)/3)] , [sin(theta-(2pi)/3), cos(theta-(2pi)/3), sin(2theta-(4pi)/3)|

A function f(theta)=sin^(2)theta+3sin theta cos theta+5cos^(2)theta is defined AA theta in R . Another function g(theta)=f((pi)/(2)-theta) at the point theta where f(theta) is minimum, then thevalue of (1)/(g(theta)) is

The value of (sin 3theta+sin 5theta+sin 7 theta+sin 9 theta)/(cos 3 theta+cos 5 theta+cos 7 theta+cos 9 theta)=……………