Evaluate I = ∫−11 (−2x3 − 6x + 1) dx.
Integrals worksheet with answers
1.Easy
f(x) = −2x3 − 6x + 1[−1, 1]
I =
2.Easy
Evaluate I = ∫−20 (−3x2 + 5x + 4) dx.
f(x) = −3x2 + 5x + 4[−2, 0]
I =
3.Medium
Evaluate I = ∫02 2x·(x² + 1)3 dx.
f(x) = 2x·(x² + 1)3[0, 2]
I =
4.Medium
The region under y = 0.5x from x = 0 to x = 4 is rotated about the x-axis. Find the volume V of the solid (a cone).
y = 0.5x0 ≤ x ≤ 4
V =
5.Hard
Find the area A of the region between the parabola y = 1 − x² and the x-axis.
y = 1 − x²
A =
6.Hard
Find the area A of the region enclosed by y = x2 and y = 2x.
y = x2y = 2x
A =
Answer key
- 1. I = 2
- 2. I = −10
- 3. I = 156
- 4. V = 16.76
- 5. A = 1.333
- 6. A = 1.333
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