SOLUTION: The letters x and y represent rectangular coordinates. Write the following equation using polar coordinates (r, θ). x=5

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Question 936569: The letters x and y represent rectangular coordinates. Write the following equation using polar coordinates (r, θ).
x=5
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
The polar substitutions are:

x%2Fr=cos%28theta%29 -> x=r%2Acos%28theta%29
y%2Fr=sin%28theta%29 -> y=r%2Asin%28theta%29
r%5E2=x%5E2%2By%5E2 -> r=sqrt%28x%5E2%2By%5E2%29

x+=+5

r%2Acos%28theta%29=5

r=5%2Fcos%28theta%29}}}

r=5%2Asec%28theta%29

Edwin