Right having a few labs at the moment and just wanted to get a clarificating conserning errors.(adsbygoogle = window.adsbygoogle || []).push({});

if i have a length error which is 2+-1... if i add two length or subtract two length, what do i do with the error?

the same if i multiply them och divide them...

and then finally if i sqaure,kube or take the sqrt of them..???

it's not that important could probably ask a tutor but have not lectures today so don't have to get the bus to the uni then =).

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# Length error which is 2+-1

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