Math, asked by bina4287, 11 months ago

Tan a + b = tan a + tan b / 1 - tan a *tan b prove that

Answers

Answered by blaminstar

1

Answer\

23

Step-by-step explanation:

(39+42)^2/(42-54)(54-39) +

(42+54)^2/(39-42)(54-39) +

(42+39)^2/(39-42)(42-54) .

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