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Evaluate {(1by3)Power(-1) - (1by4)Power(-1)}Power(-1)` - CBSE Class 8 - Mathematics

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Question

Evaluate  `{(1/3)^(-1) - (1/4)^(-1)}^(-1)`

Solution

`{(1/3)^(-1) - (1/4)^(-1)}^(-1) = {(3/1)^1 - (4/1)^1 }^(-1)`     `"     "(a^(-m) = 1/a^m)`

= `{3 - 4}^(-1) = (-1)^(-1) = 1/(-1) = -1`

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 12: Exponents and Powers
Ex. 12.10 | Q: 6.1 | Page no. 198
Solution Evaluate {(1by3)Power(-1) - (1by4)Power(-1)}Power(-1)` Concept: Powers with Negative Exponents.
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