I'd use Feynman's TRICK,
differentiate under the integral sign.
The Big Bang Theory Season 8, Episode 2
it's a TRICK question.
The Big Bang Theory Season 5, Episode 23
The dwarf has played his little TRICK.
Game of Thrones Season 2, Episode 9
...completely unrelated
to this magic TRICK.
The Big Bang Theory Season 4, Episode 18
Raj, wanna see a new magic TRICK
I've been working on?
The Big Bang Theory Season 4, Episode 18