calculate sinx13 I understand how to get one of the answers3

calculate sinx=-1/3

I understand how to get one of the answers(-.34) but im not sure how to get the second answer which should be (3.48)

Solution

We get two answers

one is

x=-0.33984 which is approximately x=-0.34

and

another is

x= pi +0.33984

x =22/7 +0.33984

x=3.481432654

x=3.48