Simplify (-7/8)-3× (-7/8)2 and express a rational number.

1.	Simplify (-7/8)-3× (-7/8)2 and express a rational number.
Answer» (-7/8)^-3× (-7/8)² We have, = (-7/8)^{(-3+ 2)} … [{(a/b)^m × (a/b)ⁿ} = (a/b)^m-n = (-7/8)^(-1) = (-8/7)

Answer»

(-7/8)^-3× (-7/8)²

We have,

= (-7/8)^{(-3+ 2)} … [{(a/b)^m × (a/b)ⁿ} = (a/b)^m-n

= (-7/8)^(-1)

= (-8/7)

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