October 2018 1 53 Report

Błagam o pomoc!!!!

Oblicz bez użycia tablic matematycznych:

sin^2 23+sin^2 67=

tg^2 17 * tg^2 73 - cos 90=

cos^2 15 - cos^2 75 =

tg30*tg40*tg50*tg60=

sin39/sin51*cos39/cos51=

4sin18/cos72=

bardzo proszę o rozpisanie w miar możliwosci.


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