Math, asked by asher2909p6mfl3, 1 year ago

prove that cot(A+B).cot(A-B) =(cos^2B-sin^2B)/sin^2A-sin^2B

Answers

Answered by jegffm7

9

use inverse composite function

asher2909p6mfl3: can u please solve it, i still cant understand

Answered by wwwkaushalpatel29805

2

aa sum(dakhlo) no ans. koi aapo

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