October 2018 1 11 Report

Udowodnij tożsamość Trygonometryczną :

a) \frac{sinx}{1+cosx}=\frac{1-cosx}{sinx}

b) \frac{ctgx-tgx}{sinx+cosx} = \frac{1}{sinx} - \frac{1}{cosx}

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