Question

Given the following unit circle, rotategreen dot to the appropriate angle andthen find the exact value of the function.sin 210°

Answer 1

Step-by-step explanation

If we move the green dot by 210 degrees we will have the green dot fall in the third quadrant. This can be seen below

Therefore,

`\begin{gathered} since\text{ sine is negative in third quadrant} \\ sin210^0=sin(180+30)=-sin30=-0.5 \end{gathered}`

Answer: -0.5