Integrals worksheet with answers

Free printable Integrals worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy
xy4y = √(x)

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).

y = √(x)0 ≤ x ≤ 4
V =
2.Easy
xy1.5y = xex/2​

Evaluate I = ∫₀1.5 x·ex/2 dx.

∫₀1.5 x·ex/2 dx
I =
3.Medium
xy02

Evaluate I = ∫02 e0.5x dx.

f(x) = e0.5x[0, 2]
I =
4.Medium
xy01

Evaluate I = ∫01 ex dx.

f(x) = ex[0, 1]
I =
5.Hard
xy2y = x²eˣ

Evaluate I = ∫₀2 x²·eˣ dx.

∫₀2 x²eˣ dx
I =
6.Hard
xy3y = 6xy = 2x²

The region between the line y = 6x and the parabola y = 2x² is rotated about the x-axis. Find the volume V of the solid.

y = 6xy = 2x²
V =

Answer key

  1. 1. V = 25.13
  2. 2. I = 1.883
  3. 3. I = 3.437
  4. 4. I = 1.718
  5. 5. I = 12.78
  6. 6. V = 407.2

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