>>11154689Learning how to prove things makes sure you have a completely accurate understanding of how and why the method works. If you don't know the proof you might end up applying a formula incorrectly or in a way that doesn't make sense.
Also, it's important to have a thorough understanding of how to prove something mathematically if you're going to work on cutting edge math and devising completely new math concepts.
Generally for engineers though yeah just plug the equation into your calculator and take the answer as it is fuck it, who cares how it works
