How do you find sinx=1/2?
3 Answers
Use the trig conversion table and the trig unit circle to solve
Trig table gives
Trig circle gives another arc
Since
They are:
*Diagram not drawn to scale.
Explanation:
We can find the answer using a triangle or the unit circle
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Using a right triangle
color(blue)(sin(theta)=1/2
As we see in the diagram,
So,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Using unit circle
As
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hope this helps! :)