October 2018 2 78 Report

Pilne ! proszę o pomoc!! :) dam naj

Tożsamości trygonometryczne

Zad1.Oblicz:

tgα+ctgα/2tgα-ctgα , jeżeli tgα=√3/3

zad2.Oblicz

b=sinα+cosα/sinα-cosα jeśli tgα=½

zad3. Uprość wyrażenia.

a) sin²α/1+cosα

b)2cos²α-1/1-2sin²α


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