Respuesta :

riyanandola
The measure of angle θ = 7pi/6. To convert this to degrees, substitute pi with 180 degrees. Pi is always equal to 180 degrees.
θ becomes: 7 x 180/6
Therefore, θ = 210 degrees.
And, to solve for sin θ, you can directly input sin (210) in the calculator. 
Thus, sin θ = sin (210) = -0.5 or -1/2
Stiaen
[tex]\dfrac{7\pi}{6}\times\dfrac{180\°}{\pi}=210\°[/tex]

[tex]\sin\left(\dfrac{7\pi}{6}\right)=\sin\left(210\°\right)=-\dfrac{1}{2}[/tex]