If a = 2+ √3 , then find the value of a - 1/a
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Step-by-step explanation:
a - 1/a
2+ √3 - 1
2+ √3
4 + 3 - 1 ÷ 2+ √3
6(2-√3) ÷ 4 + 3
12 -6√3 ÷ 7
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