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प्रश्न
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
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उत्तर
Expressing in fraction form, we get:
5−1 = 1/5 (using the property a−1 = 1/a)
and
(−7)−1 = −1/7 (using the property a−1 = 1/a).
We have to find a number x such that
`1/5x=(-1)/7`
Multiplying both sides by 5, we get: `x=-5/7`
Hence, 5−1 should be multiplied by −5/7 to obtain (−7)−1.
संबंधित प्रश्न
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| Powers Table | ||||||||||
| x | 1x | 2x | 3x | 4x | 5x | 6x | 7x | 8x | 9x | 10x |
| 1 | 1 | 2 | ||||||||
| 2 | 1 | 4 | ||||||||
| 3 | 1 | 8 | ||||||||
| 4 | 1 | 16 | ||||||||
| 5 | 1 | 32 | ||||||||
| 6 | 1 | 64 | ||||||||
| 7 | 1 | 128 | ||||||||
| 8 | 1 | 256 | ||||||||
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1 | 2, 4, 8, 6 | ||||||||
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