Zapisz wyrazenie w jak najprostrzej postaci
a)sin^2 (alfa) -1+cos^2(alfa)
b)1-cos^2(alfa)
---------------------
1-sin^2(alfa)
sin^2(alfa)
c)cos^2(alfa) * ---------------- + cos^2(alfa)
cos^2(alfa)
d)sin^4(alfa) +2sin^2(alfa) *cos^2(alfa)+cos^4(alfa)
DAJE NAJ
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a)
b)
c)
d)