Question

if a=2√3, then find a-1/a​

Answer 1

Answer:

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Answer 2

Answer:

$\frac{11}{2 \sqrt{3} }$

Step-by-step explanation:

$a - \frac{1}{a} = \frac{ {a}^{2} - 1 }{a}$

substituting the values we get as

$\frac{( {2 \sqrt{3} }^{2}) - 1 }{2 \sqrt{3} } \\ = \frac{12 - 1}{2 \sqrt{3} } \\ = \frac{11}{2 \sqrt{3} }$