Question

\int\limits_{0}^{1} \int\limits_{0}^{X} (x^2 + 4xy) dy dx

Answer 1

Like this? \[\Huge \displaystyle \int\limits\limits_{0}^{1} \int\limits\limits_{0}^{x} (x^2 + 4xy) dy dx\]

Answer 2

oh gosh this is a mess

Answer 3

yes just like that