Help pls!! It's just a question.... (a^(2) +b^(2) )/(2) to \left \ {{a=-1} \atop {b=-2}} \right. The result is (7)/(2) , but I want to know the calculation for this result.…

Question

Help pls!! It's just a question....


`(a^(2) +b^(2) )/(2)` to
`\left \ {{a=-1} \atop {b=-2}} \right.`


The result is
`(7)/(2)` , but I want to know the calculation for this result.

Answer 1

-1^2 - 2^2/2 is the working out equation