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प्रश्न
Write the following number using positive indices.
`(2/7)^-2`
बेरीज
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उत्तर
It is known that `"a"^-"m" = 1/"a"^"m"` where m is an integer and a is a non-zero rational number.
`(2/7)^-2`
`= 1/(2/7)^2`
`= (7/2)^2`
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
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