How do you rationalize the denominator and simplify #(cos^2 x) /( 1- sin x) #?

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Answer 1 · 2016-04-02T14:15:21

#(cos^2x)/(1-sinx)xx(1+sinx)/(1+sinx)=((cos^2x)/(1-sin^2x)xx(1+sinx))#
#=(cancelcos^2x)/(cancelcos^2x)(1+sinx)=1+sinx#