emilyisanemoji
emilyisanemoji
27-04-2017
Mathematics
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I need a lot of help please!
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Аноним
Аноним
27-04-2017
when point Q (2, -1) is rotated about the origin O through 90° in clockwise direction, the new position of point Q (2, -1) will become Q’ (-1, -2).
answer
Q' (-1, -2)
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