This was actually on the air force website

High school, college, online, adult education, books, tutor, etc. Most people will have an easier time learning higher math with an instructor to guide them and answer questions, but there's no reason you can't learn it on your own. Make sure you have a solid foundation in arithmetic and algebra. From there it's a lot of remembering rules and formulas. A teacher and experience are two important sources of knowing what formulas to use where, that's what separates a good engineer from someone who memorized a book. You can have the right answer by the numbers but it doesn't matter if you apply the wrong concepts and in real life don't have a working solution to your actual problem.

Yeah, it would take a long time to complete, but it looks doable.

Some of the more complicated looking stuff is just fancy speak for do 2 integrals and to add up a series

A possibility.

Not only would that be funny but it would actually be awesome. Anyone with time, a little smarts, and a calculator/library/google can solve most math problems. But if they hid the number in plain sight and the answer wasn't the phone number- you'd need common sense and clever deduction to get the number, two very useful skills especially for engineers. The military can teach you math pretty easy, but the other stuff is harder to teach if you don't already have it.

I might have a chance at being a janitor in the Air Force then.

The slogan is "aim high" so I dig the ambition there.

The answer to everything is 42 my man.