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प्रश्न
Write \[\left( \frac{1}{9} \right)^{- 1/2} \times (64 )^{- 1/3}\] as a rational number.
उत्तर
We have to find the value of . `(1/9) ^((-1)/2) xx (64) ^((-1)/3`So,
`(1/9) ^((-1)/2) xx (64) ^((-1)/3` = `(1/9) ^((-1)/2) xx (64) ^((-1)/3`,
`= (1/3) ^((-1)/2) xx (4^3) ^((-1)/3) `
`= (1/3^(2 xx (-1)/2)) xx (4^(3 xx (-1)/3))`
`= (1/3^(2 xx (-1)/2)) xx (4^(3 xx (-1)/3))`
`(1/9) ^((-1)/2) xx (64) ^((-1)/3 ) = 1/3^(-1) xx 4^(-1) `
`=1/(1/3) xx 1/4`
`= 1xx 3/1 xx 1/4`
`= 3/4`
Hence the value of the value of `(1/9)^(-1/2) xx (64)^(-1/3)` is `3/4`.
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