November 2018 1 19 Report

Tożsamości trygonometryczne -- 3 przykłady

a) tg²α+1=1/cos²α

b) ctg²α+1=1/sin²α

c) cos²α/sin²α + 1/sin²α=1/sin²α

Legenda: / znaczy kreska ułamkowa


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