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Verified answer
Jawab(x,y)= (-3,1)
α = 90
pusat rotasi (a,b)= (-2,3)
a= -2
b = 3
Verified answer
Rotasi(x') = (0 - 1) (-3 + 2) + (-2) = (0 - 1) (-1) + (-2) = (2) + (-2) = (0)
(y') (1 0) (1 - 3) (3) (1 0) (-2) (3) (-1) (3) (2)
Jadi, bayangannya adalah (0, 2)
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