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Example 1: Trigonometric Substitution
Find ∫ (a2 + x2)-3/2 dx. Let θ = arctan (x/a). Figure 7.6.2 Then from Figure 7.6.2, x = a tan θ, dx = a sec2 θ dθ, = a sec θ. So
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Home Trigonometric Functions Trigonometric Substitututions Examples Example 1: Trigonometric Substitution |