September 2018 1 21 Report

Oblicz wartość wyrażenia:
ʆ - alfa
ß - beta
a) cos ʆ cos ß - sin ʆ sin ß, jeżeli sin ʆ = pierwiastek z 2 podzielić na 3, cos ß = 2/3
b) ½ tg ʆ - 3 sin ʆ cos ß + 4 ctg ß, jeżeli tg ʆ = 1 1/3, sin ß = ½


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