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Mathematics Worksheet

🗂️ Multiple Integrals

Chapter: Multivariable Calculus · Level ★★★ · Time: 30 min
SCORE___ / 20
NameClassDate
After this worksheet you can
Evaluate double integrals over rectangular regions.Integrate one variable at a time as an iterated integral.Interpret a double integral as volume under a surface.Choose a convenient order of integration.

🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4

1∬ xy dA over [0,1]×[0,1] = ?
2∬ 3 dA over [0,4]×[0,2] = ?
3A double integral over a rectangle is evaluated as an ___ integral:
4∬ x2 dA over [0,2]×[0,3] = ?

🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11

5A double integral is evaluated as an integral.
6∬ xy dA over [0,1]×[0,1] = .
7Evaluate ∬ xy dA over [0,1]×[0,1].
8Evaluate ∬ 3 dA over [0,4]×[0,2].
9Evaluate ∬ x2 dA over [0,2]×[0,3].

🚀 Section C · Challenge ● CHALLENGE 5

10Evaluate ∬ (x + y) dA over [0,2]×[0,2].
💭 Reflection — the most useful thing I learned:
A ___/4   B ___/11   C ___/5   Total ___/20 Teacher's Signature Parent's Signature
✂ answer key — fold or cut before handing out

1-C   2-C   3-B   4-B  |  5 iterated   6 1/4   7 = 1/4   8 = 24   9 = 8  |  10 = 8

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