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A physical quantity P is related to four...

A physical quantity P is related to four observables a,b,c and d as follows:
`P = a^(3)b^(2)/(sqrtcd)`
The percentage errors of measurement in a,b, c and d are 1%, 3% , 4% and 2% respectively. What is the percentage error in the quantity P ? If the value of P calculated using the above relation turns out to be 3.763, to what value should you round off the result ?

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13%, 3.8
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