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## Homework Statement

i) Express the equation r = 1 + cos(theta) in Cartesian form.

ii) Sketch the curve whose equation in polar form is r = cos(theta)

## Homework Equations

x = r cos (theta)

y = r sin (theta)

## The Attempt at a Solution

i) x = r cos (theta) = (1 + cos(theta)) cos (theta)

y = r cos (theta) = (1 + cos(theta)) cos (theta)

i'm not sure thats right???

ii) i have no idea how to sketch it, because there are no figures to work with!

thanks

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