The letters r and theta represent polar coordinates. Write each equation using rectangular coordinates. r=sin theta-cos theta r=sin theta-cos theta.

Lipossig

Lipossig

Answered question

2021-09-05

The letters randθ represent polar coordinates. Write each equation using rectangular coordinates (x,y).

r=sinθcosθr=sinθcosθ

Help, please.

Answer & Explanation

berggansS

berggansS

Skilled2021-09-06Added 91 answers

We know that rcosθ=x and that rsinθ=y, so xr=cosθandyr.
Thus, r=yrxr.
Multiplying both sides by r gives: 
R2=yx.
We know that r=x2+y2, then
x2+y2=yx


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