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Evaluate 4\ cos\ 20^0\ -sqrt(3)\ cot\ 20...

Evaluate `4\ cos\ 20^0\ -sqrt(3)\ cot\ 20^0\ =`

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ALLEN-TRIGONOMETRIC RATIOS AND IDENTITIES-All Questions
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  3. Evaluate 4\ cos\ 20^0\ -sqrt(3)\ cot\ 20^0\ =

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