Question

If a=2√3, then find the value of a-1/a​

Answer 1

Answer:

11√3 / 6

Step-by-step explanation:

a = 2√3

1/a = Rationalize 2√3

1/a = 1 / 2√3 * 2√3 / 2√3

1/a = 2√3 / (2√3)²

1/a = 2√3 / 4 x 3

1/a = 2√3 / 12

∵ a - 1/a = 2√3 - 2√3/12

a - 1/a = 24√3 - 2√3  / 12

a - 1/a = 22√3 / 12

a - 1/a = 11√3 / 6 ans.

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Answer 2

Step-by-step explanation:

hope it helps for you mate