Math, asked by kdayakarreddy184, 11 months ago

Cos A + sin by Cos A minus Sin A minus Cos A minus sin by Cos A + sin a

Answers

Answered by sasiedharanrdms

0

(cos a +sin a)^2-(cos a-sin a)^2

(cos a +Sina.-cos a+ sina)(2cos a)

2sinAcosA=sin2A

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