Question

where i=1,j=2 then k=((++i)*(++i))/((j++)*(j++))

Answer 1

? Please review the question. Too many signs.

Answer 2

This is a computer science question, but here's an answer anyway.
Don't know what language you're running.
If you're running Java, k=1
Explanation as follows:
Evaluation left-to-right
++i*++i is evaluated as 2*3, since increment is prefix increment (immediate)
j++*j++ is evaluated as 2*3, since increment is a postfix increment.