Question
The square root of `((0.75)^3)/(1 - 0.75)` + [0.75 +` (0.75)^2` + 1] is :
Answer: Option B
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`((0.75)^3)/(1 - 0.75)` + [0.75 +` (0.75)^2` + 1]
=`sqrt(((0.75)^3 + (1 - 0.75) [(1)^2 + (0.75)^2 + 1 xx 0.75])/(1 - 0.75))`
=`sqrt(((0.75)^3 + [(1)^3 - (0.75)^3])/( 1 - 0.75))` = `sqrt(1/0.25)` = `sqrt(100/25)` = `sqrt(4)` = 2
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