Find the rectangular coordinates for the point whose polar coordinates are given. 9 2 , − π 4?
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Find the rectangular coordinates for the point whose polar coordinates are given. (9 √ 2,−π/4)
(x,y)=____________
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(x,y) = (9 √2cos(−π/4),9 √2sin(−π/4))
= (9 √2cos(π/4),-9 √2sin(π/4))
= (9 √2/√2,-9 √2/√2)
= (9,-9)