I+1/cos π/4+isin π/4

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I+1/cos π/4+isin π/4

Posted by Kartikey Sharma 3 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Vastav Dhiman 3 years, 2 months ago

Write cosπ = cos 2(π/2) Then, put the identity of cos 2x=1-2 sin^2 x, Which mean, cos 2(π/2)= 1-2sin^2 π/2

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