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# help

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A lattice point is a point with integer coordinates. How many lattice points $$(x,y)$$ with $$-100\le x\le 100$$ and $$-100\le y\le 100$$ are on the graph of the parametric equations \begin{align*} x&=30-40\cos t,\\ y&=-50 + 30\cos t? \end{align*}

Nov 6, 2019