The length of a side of square floor tile is given at 15 in, with a maximum error of +or- 0.08in. Use differentials to estimate the maximum error in calculating the are.

Question

Ans. 2.4 sq. in.

I don't know how to start this

Answer 1

you can start here... (actually, I started with google ...)

www.emathhelp.net/notes/calculus-1/differentials/using-differentials-to-estimate-errors/