# Math Help - 2 collegeboard AP exam MC problems.

1. ## 2 collegeboard AP exam MC problems.

I am in need of assistance in 2 collegeboard AP exam problems.
There are posted here.

Your assistance is very much appreciated.

2. You shall use the 2nd Fundamental Theorem of Calculus.

If it was just INT(0,x)f(t)dt
Then the derivative is f(x).

Here it is INT(0,x^2)f(t)dt
Use the chain rule.
The inner function (the "u") is x^2
The other function (the "f(u)") is INT(0,u)f(t)dt.

Thus,
2x*f(u)=2x*f(x^2)