Question

R=14costheta in rectangular form

Answer 1

x2 + y3 = 14x is the soulution of your answer (sorry for bad grammar)

Answer 2

x² +y² = 14x

Explanation:

Making the usual substitution x = r·cos(θ) and r² = x² +y², we can get there this way:

Substitute cos(θ) = x/r:

r = 14·x/r

Multiply by r:

r² = 14x

Substitute for r²:

x² + y² = 14x

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The original equation is shown dotted; the rectangular version is shown as a solid line. The graphs are identical.