Show that `tan (pi/4+theta/2)=sec theta +tan theta`.

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

Find tan theta .

Simplify: tan theta[(sec theta, tan theta),(tan theta, -sec theta)] + sec theta[(- tan theta, -sec theta),(-sec theta, tan theta)] .

Prove that tan^4theta+tan^2theta=sec^4theta-tan^2theta-1

Solve tan theta+tan 2 theta+tan 3theta=tan theta.tan 2theta.tan 3 theta .

If theta=30° , show that 3sin theta- 4sin^3 theta= sin theta cos2 theta + costheta sin 2theta .

If sec theta- tan theta=1/2 ,find the value of sec theta+ tan theta

Find sec theta . .

If tan^2 theta=1-e^2 then prove that sec theta+tan^3 theta cosec theta=(2-e^2)^(3/2)

If tan theta = p/q , proved that (p sin theta -q cos theta)/(p sin theta+q cos theta) is (p^2-q^2)/(p^2+q^2) .