You are watching: Change from rectangular to cylindrical coordinates. (let r ≥ 0 and 0 ≤ θ ≤ 2π.)
Seems pretty straightforward, however the system won"t accept my answer.
$r = sqrtx^2 + y^2 = sqrt25 + 25 = sqrt2(25) = 5sqrt2$
$ heta = arctan(5/-5) = -pi/4 = 7pi/4$ (considering that they want $ heta $ to be positive)
$z = z = 5$
Wouldn"t the allude be $(r, heta, z) = (5sqrt2, 7pi/4, 5)$? Did I make a mistake somewhere?
asked Mar 16 "17 at 13:22
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