Question

prove that

sin(A+B)/sin(A-B)
= TanA +Tan B / Tan A - Tan B


Thanks ✌

Answer 1

$\huge{\bold{\red{Heya!!!}}}$


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Answer 2

Let's take

RHS

= tan A + tan B tan A - tan B

=sin Acos A + sin Bcos Bsin Acos A - sin Bcos B

=sin A . cos B + cos A . sin Bsin A . cos B - cos A . sin B

=sinA+BsinA-B

=LHS


$\huge\bf{\red{\mathfrak{thank \: you :)}}}$