Oblicz:
A) sin 30 ° × ctg 30 ° - cos 30 ° = B) 2 cos 60 ° - 3 sin 30 ° = C ) ( ctg 60 ° x tg 60 ° ) ³ = D) cos 30 + 3 sin 60 =
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B)2 * 1/2 - 3* 1/2 = 2/2 - 3/2 = -1/2
C)(√3/3 * √3)? = (√9/3)? i tu nie wiem co jest za nawiasem musisz sam obliczyc
D)√3/2 + 3* √3/2= √3/2 + 3√3/2
Mysle ze dobrze ;D