Jawaban:
rotasi
(x, y) rotasi 90° berlawanan arah (y, -x)
(2,-1)----->(-1,-2)
pencermiban terhadap sumbu X
(x,y) terhadap sumbu X (-x,y)
(-1,-2)----->(1, -2)
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Jawaban:
rotasi
(x, y) rotasi 90° berlawanan arah (y, -x)
(2,-1)----->(-1,-2)
pencermiban terhadap sumbu X
(x,y) terhadap sumbu X (-x,y)
(-1,-2)----->(1, -2)