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anonymous

  • 5 years ago

find the polar coordinates that correspond to (11,-11)

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  1. amistre64
    • 5 years ago
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    the radius is equal to the distance from the origin (0,0) to (11,-11) r = sqrt( (11^2) + (-11^2) ) the angle of rotation is equal to cos^-1(11/r) or sin^-1(-11/r) ; just remember that it is in the forth quadrant. So, sin^-1 is probably more helpful; since it spits an angle at you that is either in Q1 or Q4.

  2. amistre64
    • 5 years ago
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    just at a quick glance; r= 11sqrt(2).

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