The short answer is: yes, you should memorize all the equations.
If you’re taking your test in person at a testing center, you’re allowed a piece of blank scratch paper. In the first few minutes of your test, you can write down as much as possible to “dump” all the equations from your memory onto that paper. But if you didn’t memorize them already, you’ll have nothing to write down
Take a look at this thread below that has an example SIE dump sheet:
