December 2018 1 12 Report
Prosto do matury 1.
Zad. 6,10. Uprość wyrażenie.
(1+tg ^{2} \alpha )*cos ^{2} \alpha - 5
zad.6,11 Uprość wyrażenie.
(sin \alpha + cos \alpha )^{2} -(sin \alpha - cos \alpha )^{2}

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