Evaluate
-\frac{\sqrt{3}}{12}+\frac{1}{4}\approx 0.105662433
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\frac{72-24\sqrt{3}}{288}
Factor 1728=24^{2}\times 3. Rewrite the square root of the product \sqrt{24^{2}\times 3} as the product of square roots \sqrt{24^{2}}\sqrt{3}. Take the square root of 24^{2}.
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