September 2018 1 26 Report

Mam takie zadania z matematyki:

1. Sprawdz tożsamości:

a) (tg α -1)(ctg α +1) = tg α - ctg α

Chodzi oto że trzeba dojść do tego aby lewa i prawa strona była taka sama np.: (tg α -1)(ctg α +1) = (tg α -1)(ctg α +1) lub tg α - ctg α = tg α - ctg α.


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