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dineykina
@dineykina
July 2022
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Помогите пожалуйста!)))
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snow99
A = NK = (2-1, 1-1,2-3) = (1,0,-1)
|a| = |NK| = sqrt(1^2 + 0 + (-1)^2) = sqrt(2)
cosa = 1/sqrt(2)
a = 45°
cosb = 0/sqrt(2) = 0
b=90°
cosy = -1/sqrt(2)
y = 135°
1 votes
Thanks 1
dineykina
Подскажите а как найти альфа, бетту и гамму теперь?
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Answers & Comments
|a| = |NK| = sqrt(1^2 + 0 + (-1)^2) = sqrt(2)
cosa = 1/sqrt(2)
a = 45°
cosb = 0/sqrt(2) = 0
b=90°
cosy = -1/sqrt(2)
y = 135°