`(1+sintheta+costheta)^2 = 2(1+sintheta)(1+costheta)`

Evaluate : ( sintheta + costheta ) ( sintheta - costheta )

If (1+ sintheta-costheta)/(1+ sintheta + costheta)+(1+sintheta+costheta)/(1+sintheta-costheta)= 4 , then which of the following values will be suitable for theta ?

If : (1+sintheta)/(1+costheta)+(1-sintheta)/(1-costheta)=2u.(csctheta-costheta),"then" : u =

((1+sintheta+i costheta)/(1+sintheta-i costheta))^n is equal to

Evaluate : ( Sintheta - Costheta )^2 + ( Sintheta + Costheta )^2 = ?

((1-sintheta+costheta)^(2))/((1+costheta)(1-sintheta))=?

The value of (sintheta)/(1+costheta)+(sintheta)/(1-costheta) is :

Sintheta + Costheta = 2 Sintheta - Costheta = ?

If sintheta+costheta=x then sintheta-costheta=?

If : tantheta=(1)/(7), "then" : (2sintheta+3costheta)/(3sintheta+4costheta)=