Asked by louie
VERIFY:(1-sinx)/(1+sinx)= sec^2x-2secxtanx+sec^2x-1
Answers
Answered by
bobpursley
easy. on the left, multiply by (1-sinx)/(1-sinx)
you get (1-2sinx + sin^2x)/(cos^2x)
which is
sec^2x-2secxsinx/cosx+(1-cos^2x)/cos^2x
which immediately leads to the solution
you get (1-2sinx + sin^2x)/(cos^2x)
which is
sec^2x-2secxsinx/cosx+(1-cos^2x)/cos^2x
which immediately leads to the solution
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