Question

if X equals to 10.0 plus minus 0.1 and y equals to 5.0 plus minus 0.1 then x minus y is equals to ​

Answer 1

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x=10+0.1

y=10-0.1

2x-2y=(10+0.1)-(10-0.1)

= 20.2-19.8

= 0.4