Question #6a568

1 Answer
Hriman
Feb 19, 2018

I guess you want me to simplify

Explanation:

#sinx/(sinx+1)=#

#sinx/(sinx+1)*(sinx-1)/(sinx-1)=#

#(sin^2x-sinx)/(sin^2x-1)=#

#(sin^2x-sinx)/(sin^2x-(sin^2x+cos^2x))=#

#(sin^2x-sinx)/(-cos^2x)=#

#(sin^2x(1-cscx))/(-cos^2x)=#

#-tan^2x(1-cscx)=#

#-tan^2x+(sinx/cos^2x)=#

#-tan^2x+tanx*secx=#

#-tanx(tanx-secx)#

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