A physcial quantity `x =a^2 b^(-3//2)/(c^4)` has a relative error `(De – InterviewSolution

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1.	A physcial quantity `x =a^2 b^(-3//2)/(c^4)` has a relative error `(Deltax)/(x) =2(Deltaa)/(a) - (3)/(2) (Deltab)/(b) -4(Deltac)/(c )` .is the statement correct?
Answer» No, as combined error is additive only without algebraic sign. The correct statement is `(Deltax)/(x) = 2(Deltaa)/(a) +(3)/(2) (Deltab)/(b) +4(Delta)/(c )`

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