How do you convert $(4, - \frac{π}{2})$ $(4, -pi/2)$ to rectangular form?

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How do you convert $(4, - \frac{π}{2})$ $(4, -pi/2)$ to rectangular form?

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Answer 1 · 2016-11-04T15:28:37

The coordinates are $(0, - 4)$ $(0,-4)$

Explanation:

The equations to convert cartesian coordinates to polar coordinates are $x = r cos θ$ $x=rcostheta$ and $y = r sin θ$ $y=rsintheta$
where $(r, θ)$ $(r,theta)$ are polar coordinates
And $(x, y)$ $(x,y)$ are cartesian coordinates
$:. x=4cos(-pi/2)$ and $y=4sin(-pi/2)$
So $x=0$ and $y=-4$

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How do you convert $(4, - \frac{π}{2})$ $(4, -pi/2)$ to rectangular form?

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