[" 23.If "y sin theta=x sin(2 theta+theta)" show that "],[qquad (x+y)cot(theta+theta)=(y-x)cot theta]

If y sin phi=x sin(2 theta+phi) show that (x+y)cot(theta+phi)=(y-x)cot theta

If y sinphi = x sin (2theta + phi) show that (x + y) cot (theta + phi) = (y-x) cot theta .

If y sinphi = x sin (2theta + phi) show that (x + y) cot (theta + phi) = (y-x) cot theta .

If sin theta = x and sec theta = y, then cot theta is

(sin theta)/(cot theta+cos ec theta)-(sin theta)/(cot theta-cos ec theta)=

(sin theta)/(cot theta+cosec theta)=2+(sin theta)/(cot theta-cosec theta)

If sin theta =x, " write the value of " cot theta.

Prove that (1+sin theta)/(csc theta-cot theta)-(1-sin theta)/(csc theta+cot theta)=2(1+cot theta)

Solve sin^2 theta tan theta+cos^2 theta cot theta-sin 2 theta=1+tan theta+cot theta

If the system of linear equations {:((cos theta)x + (sin theta) y + cos theta=0),((sin theta)x+(cos theta)y + sin theta=0),((cos theta)x + (sin theta)y -cos theta=0):} is consistent , then the number of possible values of theta, theta in [0,2pi] is :