August 2018 1 9 Report
Zad 3
Wykaz ze dla kata ostrego α rownanie jest tozsamoscia

a) cos²α sin α + sin³α =sin α
b) sin²α cos α + cos³ α = cos α
c) (1+cos α)(1-cos α) = sin²α
d) 1-2cos²α = 2sin²α-1
e) sin²α/1-cosα = 1+cos α
f) cos²α/1+sinα = 1-sin α
g) (1/sin α + 1/cos α)(sin α+ cos α) = (1/sinα cosα) +2

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