For a non zero rational number a-a3-2 is equal toa a9b a-6c a-9d a1

(b) a−6 We have: nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; — gt; ((am)n = am x n) nbsp; nbsp; nbsp; nbsp; nbsp; ...

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Standard VII

Mathematics

Addition of Rational Numbers

For a non zer...

Question

For a non zero rational number a, (a³)⁻² is equal to
(a) a⁹
(b) a⁻⁶
(c) a⁻⁹
(d) a¹

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Solution

(b) a⁻⁶

We have:

$left (a^3 right )^{-2}=a^{3times(-2)}$ ---> ((a^m)ⁿ = a^{m x n})
$=a^{-6}$

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For a non zero rational number a, (a3)−2 is equal to (a) a9 (b) a−6 (c) a−9 (d) a1

(b) a−6 We have: ---> ((am)n = am x n)

For a non zero rational number a, (a³)⁻² is equal to
(a) a⁹
(b) a⁻⁶
(c) a⁻⁹
(d) a¹

(b) a⁻⁶

We have:

$left (a^3 right )^{-2}=a^{3times(-2)}$ ---> ((a^m)ⁿ = a^{m x n})
$=a^{-6}$