# Express the Following Rational Numbers with a Negative Exponent: ( 1 4 ) 3 - Mathematics

Sum

Express the following rational numbers with a negative exponent:

$\left( \frac{1}{4} \right)^3$

#### Solution

$\left( \frac{1}{4} \right)^3$
$= \left( \frac{4}{1} \right)^{- 3} \left[ \because a^{- n} = \frac{1}{a^n} \right]$

Is there an error in this question or solution?

#### APPEARS IN

RD Sharma Class 8 Maths
Chapter 2 Powers
Exercise 2.2 | Q 5.1 | Page 18