# Green's Theorem

## Answer

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Mathe

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The answer is accepted.

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Hi, there must be an error in your question because the second component of the curve simplifies into 3sin(t)

For the curve to be a hypocycloid, r(t) must be (4cos(t)+cos(4t),4sin(t)−sin(4t))

You're right it was a typo mistake.