Math, asked by abhudyapanigrahy, 9 months ago

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

Answers

Answered by shrutijha0804

2

Answer:

Given that,

a=2+

3

Then, Value of

a−

a

1

=2+

3

−

2+

3

1

=2+

3

−

2+

3

1

×

2−

3

2−

3

onrationalize

=2+

3

−

4−3

(2−

3

)

=2+

3

−2+

3

=2

3

Answered by tanejakca

1

1/a= 2-/3
Therefore a-1/a = 2+/3-2+/3 = 2/3

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