What is the Cartesian form of $(12,(14pi)/3))$ ?

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Answer 1 · 2017-10-11T18:16:40

x: -6
y: 10.39

Use conversion formula:

$x = r cos(theta)$

$y = r sin(theta)$

Whadaya know, the cosine of $(14 pi)/3 = -0.5$ , so the x coordinate is 12 * -0.5 = -6

the sine of this angle is 0.866, so the y coordinate is 12 * 0.866 = 10.39

GOOD LUCK

What is the Cartesian form of (12,(14pi)/3))(12,(14pi)/3))?