16 試計算 zi=u(r,θ)+iv(r,θ)的主值(principal value, −π <θ < π ),其中z=reiθ 。則下列何者正確?
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統計: A(0), B(3), C(0), D(0), E(0) #1038610
統計: A(0), B(3), C(0), D(0), E(0) #1038610