Part of knowing how do do the formulas is knowing how do do the problems.
well thats just not true... you learn how to solve problems with those formulas not the other way around. i could know the formula a*h and write a function for it with out knowing what problem it fixes.
No, I said it isn't HARD once you know the formulas.
In some advanced math or physics finals, the professor will let you copy as many formulas as you want, sometimes even use the textbook. Yet, they insist that it won't help you much, and behold, half of the class bombs, and if it weren't for a huge curve, almost everyone would fail the course. The problems require you to come up with your own ways to solve complex problems. For the problem there is no formula, you may or may not use formulas, or laws, theorems, lemmas, axioms, techniques etc, but those are by far the easy parts. The hard parts are conceptual and logical. You have to be creative on the spot, and you're being timed.