Question

if a=2+√3 find value of a-1/a​

Answer 1

Answer:

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Answer 2

Answer:

given a= 2+√3

Step-by-step explanation:

put the value of a in a-1/a

2+√3-1/2+√3

√3+1/2+√3

we do it rationalise

√3+1÷2+√3×2-√3÷2-√3

2-3/4-(√3)^2

=1/1

=1