Evaluate
1-\sqrt{3}\approx -0.732050808
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3-2\sqrt{3}+1+\sqrt{3}-3
The square of \sqrt{3} is 3.
4-2\sqrt{3}+\sqrt{3}-3
Add 3 and 1 to get 4.
4-\sqrt{3}-3
Combine -2\sqrt{3} and \sqrt{3} to get -\sqrt{3}.
1-\sqrt{3}
Subtract 3 from 4 to get 1.
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