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प्रश्न
Find the mean proportional between 0.9 and 2.5
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उत्तर
Mean proportional between 0.9 and 2.5
`= sqrt(0.9 xx 2.5)`
`= sqrt(9/10 xx 25/10)`
`= sqrt (225/100) = 15/10`
= 1.5
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