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Evaluate: - Mathematics

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Sum

Evaluate:

`[(1/4)^-3-(1/3)^-3]÷(1/6)^-3`

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Solution

`[(1/4)^-3-(1/3)^-3]÷(1/6)^-3`

=`[(4/1)^3-(3/1)^3]÷(6/1)^3`

=`(4/1xx4/1xx4/1-3/1xx3/1xx3/1)÷(6/1)^3`

=`64-27xx(1/6xx1/6xx1/6)`

=`37xx1/216=37/216`

Concept: Concept of Exponents
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 2 Exponents
Exercise 2 (A) | Q 1.07 | Page 31
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