November 2018 1 54 Report

Sprawdź, czy podane równości są tożsamościami trygonometrycznymi.

a)cos α (1/cosα-cosα)=sin²α

b) 1/1-cosα+1/1+cosα=1/sin²α

spamy zgłaszam!

cos2αsin2α=2cos2α1


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