1.

Evaluate : `15^(3)+10^(3)-25^(3)`

Answer» Let a=15, b=10 and c=-25
then a+b+c=15+10-25=0
We know that if a+b+c=0 then
`a^(3)+b^(3)+c^(3)=3abc`
Therefore , `15^(3)+10^(3)(-25)^(3)=3xx15xx10xx(-25)=-11250`


Discussion

No Comment Found