I have tried to do it, but got the wrong answer, which is:
∫(θ in [0, 2π]) ∫(φ in [π/3, 0]) ∫(ρ in [3/cosφ, 0]) (ρ cos φ) (ρ^-3) * (ρ^2 sin φ dρ dφ dθ)=3π
Help me, please!
更新1:
Thanks for the really quick reply, it was really really helpful!! But for the answer, shouldn't it be (3/2)pi from the calculations?