Toán Lớp 11: tan / x-5 mũ 0/=V3 toán 11 giúp em nhanh với cô réo quá
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Toán Lớp 11: tan / x-5 mũ 0/=V3 toán 11 giúp em nhanh với cô réo quá
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x = 1 + \dfrac{\pi }{3} + k\pi \\
x = 1 – \dfrac{\pi }{3} – k\pi
\end{array} \right.\left( {k \in Z} \right)$
\tan \left| {x – {5^0}} \right| = \sqrt 3 \\
\Leftrightarrow \tan \left| {x – 1} \right| = \sqrt 3 \\
\Leftrightarrow \left| {x – 1} \right| = \dfrac{\pi }{3} + k\pi \left( {k \in Z} \right)\\
\Leftrightarrow \left[ \begin{array}{l}
x = 1 + \dfrac{\pi }{3} + k\pi \\
x = 1 – \dfrac{\pi }{3} – k\pi
\end{array} \right.\left( {k \in Z} \right)\\
Vậy\,\left[ \begin{array}{l}
x = 1 + \dfrac{\pi }{3} + k\pi \\
x = 1 – \dfrac{\pi }{3} – k\pi
\end{array} \right.\left( {k \in Z} \right)
\end{array}$