Question

If x = 2 + √3 find x – 1 / x​

Answer 1

Answer:

√3 - 1

Step-by-step explanation:

x=2+√3

x-1=2+√3-1=1+√3

x-1/x=1+√3/[2+√3]

rationalise the denominator

1+√3/[2+√3] × [2-√3]/[2-√3]

= 1+√3(2-√3)

=2-√3+2√3-3

=√3-1

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