What is the best way of learning formulas for maths and physics..?
The best way to learn / “memorize” formulas is to use them constantly! If you do enough problems involving the quadratic formula, for example, eventually, you’ll stop having to look in that chapter to double check it. Another way is to group formulas that are similar, and be able to derive one from another. Finally, figure out formulas that have a sticky point to them, and figure out a fail-safe. I did this for the quotient rule in calculus. It says: (f/g) = gf ‘ – fg’/ gg My calculus teacher had a stupid saying that I remember to this day: “Downdup minus upddown over down down.” But what if I got it mixed up and forgot if the formula was that or: (f/g) = f g’ – gf ‘ / gg THat’s the OPPOSITE if what I wanted! Well, I figured out a quick way to double-check myself…I work out the derivative of x^2/x. Using the first formula, I get (x*2x – x^2*1) / x^2 = 2 – 1 = 1. Using the second formula, I get (x^2 * 1 – x * 2x) / x^2 = 1 – 2 = -1 which I know is wrong, since my original function is
