How to do the inverse trigonometric function to find the exact value of:-
I can do it using a calculator, but I don't know how to find it in the sine function graph ( I know how to draw the graph but I don't know what to do next)
is 30, as you clearly know. If you are familiar with the graph of , then you can draw this and the line that you draw from 0.5 on the x-axis will meet at 30 degrees on the y-axis.
The graph can be shown here:
On the graph, take 3 as the value of 180 and hence 1 as 60. You can see that if you drew a line from 0.5, it would meet halfway to 1 - which is 30!
I hope this helps you in what you're trying to do!