Respuesta :

Look at the attachment

  • The co-ordinates lie in 3 rd quadrant
  • Tan is positive

[tex]\\ \rm\Rrightarrow tan(4\pi/3)[/tex]

[tex]\\ \rm\Rrightarrow tan(4(180)/3)[/tex]

[tex]\\ \rm\Rrightarrow tan(60(4))[/tex]

[tex]\\ \rm\Rrightarrow tan240[/tex]

[tex]\\ \rm\Rrightarrow \sqrt{3}[/tex]

Ver imagen Аноним

Answer:

Step-by-step explanation:

tan(4pi/3) = opposite side / adjacent side

On a unity cycle, at the point (-1/2, -sqrt(3)/2), opposite side is -sqrt(3)/2 and adjacent side is 1/2.

So tan(4π/3) = (-sqrt(3)/2) / -(1/2)

= √3

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