- #1
tolove
- 164
- 1
Initial improper integral:
∫ dx / (1+x**2) * (1+ atan(x)) , x = 0, ∞
Substitutions:
μ = 1 + atan(x)
dμ = dx / (1 + x**2)
μ(∞) = 1 + pi/2
μ(0) = 1
Integral:
∫ dμ / μ , μ = 1, 1+ pi/2
Then solve.
I'm getting the right answer, but I think I'm botching something due to a lack of understanding about how notation works with indefinite integrals. Is this right?
∫ dx / (1+x**2) * (1+ atan(x)) , x = 0, ∞
Substitutions:
μ = 1 + atan(x)
dμ = dx / (1 + x**2)
μ(∞) = 1 + pi/2
μ(0) = 1
Integral:
∫ dμ / μ , μ = 1, 1+ pi/2
Then solve.
I'm getting the right answer, but I think I'm botching something due to a lack of understanding about how notation works with indefinite integrals. Is this right?