Find a very, very complicated mathematical formula, as long as the final answer is equal to 4, thank you. It's better to have longer symbols and more mathematics.
four
Analysis:
(√2- 1)^0+(sin？ 1+cos？ 1+sin 1cos 1+ 1)！ -3
= 1+( 1+ 1+ 1)! -3
= 1+3! -3
= 1+6-3
=4