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मान ज्ञात कीजिए: {(13)-1-(14)-1}-1 - Mathematics (गणित)

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Question

मान ज्ञात कीजिए:

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

Evaluate

Solution

`{(1/3)^(-1) - (1/4)^(-1)}^(-1) = {(3/1)^1 - (4/1)}^(-1)`    ...`[∵ (a/b)^-m = (b/a)^m]`

= (3 − 4)−1

= (−1)1

= `1/(-1)`

= −1

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Chapter 12: घातांक और घात - प्रश्नावली 12.1 [Page 206]

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NCERT Mathematics [Hindi] Class 8
Chapter 12 घातांक और घात
प्रश्नावली 12.1 | Q 6. (i) | Page 206
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