if cos`theta` , sin`phi` , sin`theta` are in g.p then check the nature of roots of `x^2+2cotphi.x + 1=0`

if costheta , sinphi , sintheta are in g.p then check the nature of roots of x^2+2cotphi.x + 1=0

If cos theta, sin phi, sin theta are in G.P., then prove that roots of x^(2)+2 cot phi x+1=0 are real

If cos theta+cos phi=a and sin theta - sin phi=b , then: 2cos(theta + phi) =

If sin theta sin phi - cos theta cos phi+1 =0 then the value of 1+ cot theta tan phi is-

If sin theta, cos theta are the roots of 6x^(2)-px+1=0 , then p^(2) =

If sin theta, cos theta are the roots of 6x^(2)-px+1=0 , then p^(2) =

If sin theta, cos theta are the roots of 6x^(2)-px+1=0 , then p^(2) =

If x = cos theta cos phi + sin theta sin phi cos psi , y = cos theta sin phi - sin theta cos phi cos psi and z = sin theta sin psi , then x^(2) + y^(2) + z^(2) equals :

If x=gamma sin theta cos phi, y=gamma sin theta sin phi, z =gamma cos theta , what is the eliminant of theta and phi ?