Question

if X=5-3√3. find (i) x^2+1/x (ii) (x^3-1/x^3) (iii) ( x-1/x)

Answer 1

Answer:

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Answer 2

Answer:

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Given:-

X=5-3√3

To Find:-

(i) x^2+1/x

= (5-3√3)^2 + 1/5-3√3

= 25-27 + 1/5-3√3

= -2 + 1/5-3√3

= (-2(5-3√3) + 1)/5-3√3

=-10-6√3 + 1/5-3√3

Multiply √3 in numerator and denominator

we get;

= 10√3-18 - 1/5-9

= 10√3-17/-4✔️

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