Post #17

so..i've been semi-lost this week..so i'm kicking it back, old school.

So, product rule and quotient rule.

First, product rule is done when you need to take the derivative of things being mulitplied. So, it would be something like x(x^2)

So, the first thing you do, is copy the first term times the derivative of the second term plus the copied second term times the derivative of the first term. Product rule is very simple, you just have to remember the rules of simplificiation. Remember to simplify correctly and if you don't remember what to do next on the simplification process, it probably means you're done simplifying.

Now, lets talk about quotient rule..you know you must use quotient rule because you have a fraction.

The rules for quotient rule is copy the bottom times derivative of the top, minus copy the top times the derivative of the bottom. Like product rule, you need to simplify jsut the same. You need to distribute the things necessary and solve it to the simplest terms possible.

The thing i don't understand is the substitution stuff..i always get the same answer after i do the substitution and don't understand the integral.