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Given `vec c` = `<10,-9>` and `vec b` = `<-6,-10>`, find `vec c` + `vec b`.

`vec c` + `vec b` = <,>

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   x  √  (   ) π ∞ DNE
( ) ( ] [ ) [ ] —∞ ∞ ∪ DNE
< > ≤ ≥ or All Real Numbers DNE
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