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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 11: √3tan (x-π/6)-1=0 giúp mình với nhé

Toán Lớp 11: √3tan (x-π/6)-1=0 giúp mình với nhé

Comments ( 1 )

  1. $\sqrt[]{3}tan\bigg(x-\dfrac{\pi}{6}\bigg)-1=0$
    $⇔tan\bigg(x-\dfrac{\pi}{6}\bigg)=\dfrac{1}{\sqrt[]{3}}$
    $⇔tan\bigg(x-\dfrac{\pi}{6}\bigg)=tan\bigg(\dfrac{\pi}{6}\bigg)$
    $⇔x-\dfrac{\pi}{6}=\dfrac{\pi}{6}+k\pi$
    $⇔x=\dfrac{\pi}{3}+k\pi(k∈Z)$

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222-9+11+12:2*14+14 = ? ( )