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Example 3
Find the length of the curve y = x2/3, 0 ≤ x ≤ 8. From Figure 6.7.3 the curve must have finite length. However, the derivative is undefined at x = 0. Thus the length formula gives an improper integral, Figure 6.7.3 Let it = 9x2/3 + 4, du = 6x-1/3 dx. The indefinite integral is Therefore
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Home Applications of the Integral Improper Integrals Examples Example 3 |