[" It is "],[qquad 1-tan thetaquad 1]quad [" esing "=sin theta+cos theta],[a_(0)1" .Coto."]

Prove that (1+tan theta)/(1-tan theta) = (1 - sin 2 theta)/(cos 2 theta) .

Show that [[1 , -tan theta ],[ tan theta, 1]][[1, tan theta],[ -tan theta, 1]]^(-1)=[[cos 2 theta, -sin 2 theta],[ sin 2 theta, cos 2 theta]]

(cos theta)/(1 - tan theta) + (sin theta)/(1 - cot theta) =……...

prove that sin theta + tan theta = (cos theta) / (1-sin theta)

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

The value of ((sin theta -cos theta )(1+tan theta + cot theta ))/(1+sin theta cos theta ) = ?

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

(xv) (cos^2 theta) / (1- tan theta) +( sin^3 theta)/ (sin theta - cos theta) = 1 + sin theta cos theta

If 4tan theta=3, evaluate (4sin theta-cos theta+1)/(sin theta+cos theta-1)

Show that (1)/( cos theta ) -cos theta =tan theta .sin theta