The region under y = 0.5x from x = 0 to x = 3 is rotated about the x-axis. Find the volume V of the solid (a cone).
Integrals worksheet with answers
1.Easy
y = 0.5x0 ≤ x ≤ 3
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
The region under y = 3x from x = 0 to x = 2 is rotated about the x-axis. Find the volume V of the solid (a cone).
y = 3x0 ≤ x ≤ 2
V =
4.Medium
Evaluate I = ∫₁1.5 x·ln x dx.
∫₁1.5 x ln x dx
I =
5.Hard
Evaluate I = ∫₀1 x²·eˣ dx.
∫₀1 x²eˣ dx
I =
6.Hard
Find the area A of the region enclosed by y = 0.5x2 and y = 3x.
y = 0.5x2y = 3x
A =
Answer key
- 1. V = 7.069
- 2. V = 50.27
- 3. V = 75.4
- 4. I = 0.1436
- 5. I = 0.7183
- 6. A = 18
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