Answer:
This is true. For example when \[\text{x}=\text{2}0.\text{86}\]and
\[\text{y }=\text{ 2}0.\text{84},\text{
x}-\text{y}=\text{2}0.\text{86}-\text{2}0.\text{84}=0.0\text{2}\]has only one siginificant
figure, whereas x, y both have four significant figures each. Hence, it is
advisable to measure directly the difference between two nearly equal
quantities instead of measuring the quantities and calculating their
difference.
You need to login to perform this action.
You will be redirected in
3 sec