If `(1-sin^(2)A)/(cos^(2)A)=tan theta`, then the value of `theta` is .

If =a sin2 theta(1+cos2 theta),y=b cos2 theta(1-os2 theta)x=a sin2 theta(1+cos2 theta),y=b cos2 theta(1-os2 theta) and (dy)/(dx)=k tan theta then the value of k is

If sin theta = cos theta ,then the value of 2 tan^(2) theta + sin^(2) theta -1 is equal to

If theta=tan^(-1)(2 tan^(2) theta)-(1)/(2) sin^(-1)((3 sin 2 theta)/(5+4 cos 2theta)) , then find the general values of theta .

If cos^2 theta - sin^2 theta =1/2 , then find value of tan^2 theta .

If 29 tan theta = 31 then the value of (1 +2 sin theta cos theta)/(1- 2 sin theta cos theta) is equal to

If sin theta_(1) sin theta_(2) - cos theta_(1)cos theta_(2)+1=0 , then the value of tan(theta_(1)//2)cot(theta_(1)//2) is equal to:

If sin theta_(1)sin theta_(2)-cos theta_(1)cos theta_(2)+1=0 , then the value of tan(theta_(1)//2)cot(theta_(1)//2) is equal to

(1+2sin theta+sin^(2)theta)/(cos^(2)theta)=(sec theta+tan theta)/(sec theta-tan theta)