Question

prove that (cosec theta/ cosec theta -1) + (cosec theta / cosec theta - 1) = 2 sec^2 theta

Answer 1

sorry i can't understand your questions write it again

Answer 2

$\huge\boxed{\displaystyle \rm {Answer:}}$

As we know that, Tan( A + B ) = tanA + TanB /1- TanA*TanB similarly,

Tan 45º = Tan (20° + 25°) = Tan20° + tan25 /1-

Tan20°Tan25°

1 = tan20° + tan25° / 1 - tan20° tan25°

1 - tan20° tan25º = tan20° tan25° Answer