- #1
rowkem
- 51
- 0
Homework Statement
Evaluate the following definite integrals using the Fundamental Theorem of Calculus:
1. 1 [tex]\int[/tex] 4 ( (5x2+7x+5)dx )
2. -5pi/6 [tex]\int[/tex] 4pi/6 (−6sinx+7cosx) dx )
3. 2 [tex]\int[/tex] 4 ( (e^-4x)/((e^(-4x))+7) dx )
If it's unclear, the number on the left is the lower bound of the integral and the number on the right is the upper bound of the integral, followed by the function.
Homework Equations
a [tex]\int[/tex] b f(x) dx = F(b) - F(a)
The Attempt at a Solution
Here are my solutions:
1. 1157/6
2. (-6(cos(4pi/6))+7(-sin(4pi/6)))-(-6(cos(-5pi/6))+7(-sin(-5pi/6)))
3. (4-0.25(log(1+7e^16)))-(4-0.25(log(1+7e^8)))
--
It's saying they're all wrong. I can't seem to find where I went wrong. If you could please help me out. Thanks,