+118725 
+118725 I put it through Wolfram|Alpha - here is the address
https://www.wolframalpha.com/input/?i=sin%282x%29%3D3%2F2
I don't think there are any complex solutions.
Someone else will probably comment on this.
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$$$$Now anonymousperson,
If you go to the insert dropdown list - choose special character (second from the bottom) ≤ this symbol is in the second line. 
or if you open the LaTex box and type in 5\le 6 the display will be as shown below.
$$5\le 6$$
the \ indicates that le is a functions and le stands for less than or equal to
I really want people to learn LaTex because you can write almost any math thing in there and once you get used to it it is quick quick.
