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Example 1: Length of a Spiral

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Figure 7.10.2

Find the length of the spiral r - θ2 from θ = π to θ = 4π, shown in Figure 7.10.2.

07_trigonometric_functions-558.gif

Let u = θ2 + 4, du = 2θ dθ. Then

07_trigonometric_functions-560.gif


Last Update: 2006-11-15