Crazycrayonsrock
Crazycrayonsrock
26-05-2017
Mathematics
contestada
Find derivative of 2cosx+2cos2x
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apologiabiology
apologiabiology
26-05-2017
derivitive of cosx=-sinx
dy/dx sinx=cosx
and use chain rue
2cosx=-2sinx
2cos2x=-4sin2x
so
-2sinx-4sin2x id the deritivitve
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