Question

On a unit circle, 0 = pi radians. Identify the terminal point and sin 0.

Answer 1

It is given that there is a unit circle with the point given by:

`\theta=\pi`

The circle is given by the graph shown below:

Hence from the figure the terminal point is (-1,0) and the value of sine ratio is 0.

`(-1,0),\sin \theta=\sin \pi=0`