Question

If (x^2+1)/x = 10/3 and x>1;find
1) x - 1/x
2) x^3 - 1/x^3​

Answer 1

Answer:

Step-by-step explanation:

$\frac{x^{2} +1}{x} = \frac{10}{3}$

Therefore x = 3

• x - 1/x

      = 3 - 1 / 3

      = 2 / 3

• $x^{2} -\frac{1}{x^{3} }$

    = $3^{2} - 1 / 3^{3}$

    = 9 - 1 / 27

    = 242 / 27

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