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Solve `8cos^2(x)-10sin(x)-11 = 0` for all solutions on the interval `0 <= x < 2pi`

`x` =  

Give your answers accurate to at least 3 decimal places, as a list separated by commas

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   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
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