jenb0516
jenb0516
05-12-2016
Mathematics
contestada
verify cotx/secx=1/sinx-sinx
Respuesta :
Jane80
Jane80
05-12-2016
cot=cos\sin
sec=1\cos
cosx\sinx÷1\cosx=
cos^2x\sinx=1-sin^2x\sinx=
1\sinx-sin^2x\sinx= 1/sinx-sinx
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