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## Homework Statement

I have this equation and i need to find the cartesian equation, so i apreciate your help

## Homework Equations

X=cost ' y=2sin2t

## The Attempt at a Solution

I am usign this [/B]

Sin2t=2costsint

So x+y/2=cost+2costsint

But i dont know what to do after,

I also try to solve that this way

Y/2=sin2t

Y/2=2costsint then sint=y/(4cost)

Y/2=2((x)y/4x)

When i isolate y i get y/y=3x-2