Khẳng định nào sau đây là đúng?

\(\sin u = \sin v \Leftrightarrow \left[ \begin{array}{l}u = v + k2\pi \\u = \pi - v + k2\pi \end{array} \right.\left( {k \in \mathbb{Z}} \right)\).

\(\sin u = \sin v \Leftrightarrow \left[ \begin{array}{l}u = v + k2\pi \\u = - v + k2\pi \end{array} \right.\left( {k \in \mathbb{Z}} \right)\).

\(\sin u = \sin v \Leftrightarrow \left[ \begin{array}{l}u = v + k\pi \\u = \pi - v + k\pi \end{array} \right.\left( {k \in \mathbb{Z}} \right)\).

\(\sin u = \sin v \Leftrightarrow \left[ \begin{array}{l}u = v + k\pi \\u = - v + k\pi \end{array} \right.\left( {k \in \mathbb{Z}} \right)\).