et V be the region below the plane z = 4, outside the sphere x ^ 2 + y ^ 2 + z ^ 2 = 4 and inside the semicon (img9). When raising the integral: I = ∭Tf (x, y, z) dV in the spherical coordinates x = rcos (θ) sin (ϕ), y = rsin (θ) sin (ϕ), z = rcos (ϕ) we obtain: (img10)

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