If `theta=240^@` is the following statement correct? `2sin\ theta/2=sqrt(1+sintheta)-sqrt(1-sintheta)`

Find the value of (sintheta)/(sqrt(1-sin^(2)theta))

Find the general values of theta satisying the following two equations: sintheta=1/sqrt(2) and sectheta=-sqrt(2)

If theta lies in the second quadrant, then sqrt((1-sintheta)/(1+sin theta))+sqrt((1+sin theta)/(1-sin theta)) is equal to :

sintheta=7/25 then sqrt((1-cos theta)/(1+cos theta))=

int((sintheta+costheta))/sqrt(sin2theta)"d"theta=

What is sqrt((1 + sin theta)/(1 -sintheta)) equal to ?

Prove the following Identities (1+sin theta-costheta)/(1+ sintheta+costheta)= tan(theta/2)

If theta lies in the second quadrant, then the value sqrt(((1-sintheta)/(1+sintheta)))+sqrt(((1+sintheta)/(1-sintheta)))

Simplify: (1+tan^(2)theta)(1-sintheta)(1+sintheta)