Math, asked by saininitesh770p86ncp, 1 year ago

what is equal to
$\cos(2a) + \cos(2b) + \cos(2c)$

Answers

Answered by amritstar

0

solution

= cos2 ( a+ b+ c)

= cos2 (180°)

= cos 360°

saininitesh770p86ncp: no

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