simplify
`(1+((1+tan theta)/(1-tan theta)))/(1-((1+tan theta)/(1-tan theta))`

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

Prove that (1+sin2theta)/(1-sin2theta)=((1+tantheta)/(1-tan theta))^(2)

simplify (1+tan^(2)theta)+(1+(1)/(tan^(2)theta))

Prove: tan (45 ^(@) - theta ) =(1 - tan theta)/( 1 + tan theta)

Prove: tan (45^(@)+ theta ) = (1 + tan theta)/( 1- tan theta )

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

(1+tan^2theta) sin^2theta

If [(1,-tan theta),(tan theta,1)][(1,tan theta),(-tan theta,1)]^(-1)=[(a,-b),(b,a)], then

If f(theta) = |(1,tan theta,1),(- tan theta,1,tan theta),(-1,-tan theta,1)|, " then the set " {f(theta ) : 0 le theta le (pi)/(2)} is

If "tan" 2 theta "tan" theta =1, "then" theta =