1. ## Integral calculus.

2) Find the area under the curve f(x)=x^3+ 1 on 1< x < 2

3) TRUE OR FALSE (I'm using S to represent the antiderivative symbol)

b) S e dx = e + a constant
c) S lnx dx = 1/x + a constant
d) Does the antiderivative of a minus the antiderivative of 0 represent the area of a square? a is a constant greater than 0.

2. ## Re: A Few Problems I Need Help With

Originally Posted by knowledgekick

2) Find the area under the curve f(x)=x^3+ 1 on 1< x < 2
This one is straight forward try $\displaystyle \int_{1}^2 x^3+ 1~dx$

3. ## Re: A Few Problems I Need Help With

Originally Posted by knowledgekick
2) Find the area under the curve f(x)=x^3+ 1 on 1< x < 2

3) TRUE OR FALSE (I'm using S to represent the antiderivative symbol)

b) S e dx = e + a constant
c) S lnx dx = 1/x + a constant
d) Does the antiderivative of a minus the antiderivative of 0 represent the area of a square? a is a constant greater than 0.
Have you been taught integral calculus? What have you tried here and where are you stuck?