A.A.
\(\Delta \varphi = 2n\pi \) với \(n = 0, \pm 1, \pm 2\)
\(\Delta \varphi = 2n\pi \)
\(n = 0, \pm 1, \pm 2\)
B.B.
\(\Delta \varphi = \left( {2n + \frac{1}{5}} \right)\pi \) với \(n = 0, \pm 1, \pm 2, \ldots \)
\(\Delta \varphi = \left( {2n + \frac{1}{5}} \right)\pi \)
\(n = 0, \pm 1, \pm 2, \ldots \)
C.C.
\(\Delta \varphi = (2n + 1)\pi \) với \(n = 0{\rm{ }} + 1. \pm 2,{\rm{ }}...\)
\(\Delta \varphi = (2n + 1)\pi \)
\(n = 0{\rm{ }} + 1. \pm 2,{\rm{ }}...\)
D.D.
\(\Delta \varphi = \left( {2n + \frac{5}{4}} \right)\pi \) với \(n = 0, \pm 1, \pm 2, \ldots \)
\(\Delta \varphi = \left( {2n + \frac{5}{4}} \right)\pi \)
\(n = 0, \pm 1, \pm 2, \ldots \)
