The region under y = √(x) from x = 0 to x = 4 is rotated about the x-axis. Find the volume V of the solid (a paraboloid).
Integrals worksheet with answers
1.Easy
y = √(x)0 ≤ x ≤ 4
V =
2.Easy
The region under y = √(2x) from x = 0 to x = 4 is rotated about the x-axis. Find the volume V of the solid (a paraboloid).
y = √(2x)0 ≤ x ≤ 4
V =
3.Medium
Evaluate I = ∫01 ex dx.
f(x) = ex[0, 1]
I =
4.Medium
Evaluate I = ∫02 e−x dx.
f(x) = e−x[0, 2]
I =
5.Hard
The region between the line y = x and the parabola y = 0.5x² is rotated about the x-axis. Find the volume V of the solid.
y = xy = 0.5x²
V =
6.Hard
Find the area A of the region enclosed by y = x2 and y = 2x.
y = x2y = 2x
A =
Answer key
- 1. V = 25.13
- 2. V = 50.27
- 3. I = 1.718
- 4. I = 0.8647
- 5. V = 3.351
- 6. A = 1.333
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