How do you convert $rcos(theta) = 4$ into rectangular form?

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Answer 1 · 2015-12-16T16:46:05

Use the identity ...

$x=rcostheta$ or equivalently $x/r=costheta$

Using substitution ...

$rcostheta=4$

$r(x/r)=4$

Now, simplify ...

$x=4$

hope that helped

How do you convert rcos(theta) = 4rcos(theta) = 4 into rectangular form?