Engineering Board Exam Reviewer · Definite Integrals · medium

Evaluate: 01 x3sqrt(1-x2),dx

1. 1/3
2. 2/3
3. 4/3
4. π/4 0.785

Answer

B. 2/3

Solution

Let x= , dx= ,d : 0π/2 3 ,d = 23 (Wallis).

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