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 · 2016-03-13T16:08:18

$\Rightarrow x = 0 and y = - 4$ $=>x=0and y= -4$

Explanation:

If Cartesian or rectangular coordinate of a point be (x,y)
and its polar polar coordinate be $(r, θ)$ $(r,theta)$

then $x = r cos θ and y = r sin θ$ $x=rcostheta and y= rsintheta$
here $r = 4 and θ = - \frac{π}{2}$ $r=4 and theta =-pi/2$
$:.$
$x=4cos(-pi/2) and y= 4sin(-pi/2)$
$=>x=4*0and y= -4*1$
$=>x=0and y= -4$

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

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