1.

The value of \(\frac{x^{-2}. y^{-4}}{x^{-3}.y^{-1}} \div \frac{y^{-2}}{x^{-1}}\) is?

A. y
B. \(\frac{1}{y}\)
C. xy
D. \(\frac{1}{xy}\)
Answer» C. xy


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