" In "Delta ABC," if "b cos theta=c-a," (where "theta" is an acute angle),then "(c-a)tan theta=

In Delta ABC, if b=(c+a) cos theta, then sin theta =

In Delta ABC, if c=(a-b) sec theta, then tan theta=

In Delta ABC, b cos (C+ theta)+c cos (B- theta)=

Evaluate the value of   2 tan^2 theta + cos^2 theta - 2   , where theta is an acute angle and sin theta = cos theta .

If cos2theta=sin4theta ,where 2theta and 4theta are acute angles,then the value of theta is:

Dind theta; if sin(theta+36^(@))=cos theta; where theta+36 is an acute angle.

Evaluate the value of 2 tan^2 theta + cos^2 theta where theta is an acute angle and sin theta = cos theta

If cos2theta=sin4theta , where 2theta and 4theta are acute angles, find the value of theta .

If cos2 theta=sin4 theta, where 2 theta and 4 theta are acute angles,find the value of theta.

If 7 sin^2 theta +3 cos^2 theta = 4, and theta is a positive acute angle, then tan theta is equal to