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28 October, 15:34

How do you convert the rectangular coordinates (9, 0) into polar coordinates?

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  1. 28 October, 15:59
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    Hello,

    x=r*cos t

    y=r*sin t

    ==>r²=x²+y²; r²=9²+0²=81==>r=9

    y/x=tg t; 0=tg t==>t=2kπ we may use 0 in [-π π]

    so r=9, t=0
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