Question

Prove that tan ( x + y ) = tanx + tany ÷ 1-tanx tany

Answer 1

It is a trignometrical identity, there is nothing there to solve. The identity is arrived at by simplifying the identities in sin(x+y)/cos(x+y)

= sinxcosy+cosxsiny/cosxcosy−sinxsiny.

Divide the numerator as well as the denominator by cos x cosy to get

tanx+tany/1−tanxtany

Answer 2

$<b>HERE IS YOUR ANSWER$ ✨✨

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$<b>PLEASE SEE THE REFER ATTACHMENT$

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