1-tanx/1+tanx

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1-tanx/1+tanx

Posted by Bulbul Sharma 7 years, 1 month ago

UP Board > Class 12 > गणित

1 answers

Naveen Sharma 7 years, 1 month ago

{tex}{1-tan x\over 1+tan x} \\ = {tan {\pi\over 4} - tan x\over 1 +tan x.tan {\pi\over 4}}\\ = tan ({{\pi\over 4} - x} ){/tex}

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