Question

Hard equation that equals one as the solution

Answer 1

$\int { \frac { dy }{ dx } } dx\cdot { y }^{ -1 }\cdot \ln { e } \cdot { { \pi } }^{ o }\cdot \sqrt [ 326475 ]{ 1 }$

Answer 2

This is not an equation. It's just an expression that you have to evaluate,
but I think you'll have fun with it.

[ sin(270°) / cos(180°) ] x (Ψ cycles per second / Ψ Hertz) x [ log(10) ] = ?