Question

If a=2+√3, find the value of a-1/a​

Answer 1

Answer:

0.7320

Step-by-step explanation:

$\frac{a - 1}{a} = \frac{2 + \sqrt{3} - 1 }{2 + \sqrt{3} } = \frac{1 + \sqrt{3} }{2 + \sqrt{3} } = 0.7320$

Answer 2

Answer:

2$\sqrt{3}$

Step-by-step explanation: