Question

prove the value of=>( 1+sintheta - costheta/1+sintheta +costheta) 2 = 1-costheta /1+costheta

Answer 1

Answer:

LHS=RHS

Step-by-step explanation:

here we need to use

(a+b+c)²=a²+b²+c²+2ab+2ac+2bc

use this formula in numerator as well as the denominator of the left hand side

after that simplify it and cancel common terms with the denominator

please check solution pic for complete proof