Test: SAT Math

Simplify.  All exponents must be positive.

1.

x^{-5}y^{6}

\frac{\left ( xy \right )^{2}}{\left ( xy \right )}

x^{-1}y^{4}

\frac{y^{6}}{x^{5}}

\frac{1}{x^{5}y^{-6}}

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