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प्रश्न
Evaluate:
`(5^2-3^2)xx(2/3)^-3`
बेरीज
उत्तर
`(5^2-3^2)xx(2/3)^-3`
=`(5xx5)-(3xx3)xx(3/2)^3`
=`25-9xx(3/2xx3/2xx3/2)`
=`16xx27/8=54`
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