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

( cos 3 theta - sin 3 theta )/( cos theta+ sin theta ) =

Show that (1 + sin theta)/ cos theta + cos theta / (1 + sin theta) = 2 sec theta

If 4 sin theta + 3 cos theta =5 then tan theta =

show that (1 + cos theta - sin^2 theta)/[(1 + cos theta)sin theta] = cot theta

Show that (1 + cos theta)/(sin theta)+ (sin theta)/(1 + cos theta) = 2 cosec theta .

Show that 1/ Sin theta - Sin theta = Cot theta. Cos theta

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

Prove that ((cos theta-cos 3 theta)(sin 8 theta +sin 2 theta))/((sin 5 theta-sin theta)(cos 4 theta-cos 6 theta))=1

If sin theta=a/b cos theta=c/d then tan theta=

("cosec " theta - sin theta ) ( sec theta - cos theta ) ( tan theta + cot theta ) =