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pomocy !! KRYSTIAN: Wyznacz długosci boków i miary kątów trójkąta prostokątnego ABC (kąt przy wierzchołku C jesy prosty) wiedząc że |CAB| = 60stopni i |BC| = 8
30 sty 20:34
Janek191: α = 60o γ = 90o więc β = 90o − 60o = 30o a = I BC I = 8 b = I AC I c = ( AB I Mamy a/ b = tg α = tg 60o = 3 a = b *3 b = a/ 3 = 8/3 = ( 8 3) / 3 −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− a / c = sin α = sin 60 o = 3/2 2a = 3 c c = (2a)/ 3 = 16/3 = ( 16 3 )/3 −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
31 sty 22:32
Janek191: α = 60o γ = 90o więc β = 90o − 60o = 30o a = I BC I = 8 b = I AC I c = ( AB I Mamy a/ b = tg α = tg 60o = 3 a = b *3 b = a/ 3 = 8/3 = ( 8 3) / 3 −−−−−−−−−−−−−−−−−−−−−−−−−− a / c = sin α = sin 60 o = 3/2 2a = 3 c c = (2a)/ 3 = 16/3 = ( 16 3 )/3 −−−−−−−−−−−−−−−−−−−−−−−−−−−−
31 sty 22:32