Math, asked by waliamadhav200pcvulb, 1 year ago

cosx+sin(270+x)-sin (270-x)+cos(180+×)=0

Answers

Answered by manishkr123

14

LHS
=»cosx+{-cosx} - {-Cosx}+{-cosx}
=»cosx-cosx+cosx-cosx
=»2cosx-2cosx
=»0=RHS

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