Reduce the following expressions — task. Mathematics State Board, Class 10.

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(i)

\frac{-280 y^{5}}{20 y^{2}}

\(=\)

{i i}^{i}

(ii) Reduce

\frac{31 a^{6} b^{4}}{4 b^{2}}

\(=\)

\frac{i}{i} i^{i} i^{i}

[Note: Insert coefficient with a sign(if there is any negative) followed by variables in ascending order with powers.]

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1. Reduce the following expressions