September 2018 1 50 Report

Przedstaw w prostszej postaci:

a) (cosαtgα)²-(sinαctgα)²=

Ma wyjść: sin²α-cos²α=

b) sinαcosα(tgα+ctgα)

Ma wyjść: 1

c)sinα(sinα+ctgαcosα)=

ma wyjść: 1


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