can somebody tell me how many decimals places for this question and tell me if i am doing this right(adsbygoogle = window.adsbygoogle || []).push({});

1. Calculate a value for the expression

p=a^-2

a=27.3 +- 0.05 metres ( the plus and minus symbol is on top of each other)

b) calculate the maximum error in your answer

this is what i did

for a) p=27.3^-2 = 0.001342 is that how many decimals i put down how many do i put down

b) to calculate the maximum error i differintiated the questio so i got -2*a^(-3) therefore

-2(27.3)^(-3) * 0.05 = 4.91 * 10^(-6)

is that how i put the form in how many decimal places?

do i state the maximum error is 4.91*10^(-6)?

ok if somebody can answe those questions thanks!!!

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# Homework Help: Error analysis

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