1.

If a = 2+√3 then find a-1/a​

Answer»

Step-by-step EXPLANATION:

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

Hence, this is the answer



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