Question

if x+1/x =3 find x³-1/3³​

Answer 1

Answer:

x+1/x=3

x+1=3x

3x-x=1

3x=1

x=1/3

put this value of x=1/3 in eq.

so,

x^3 - 1/3^3

(1/3)^3- 1/ 27. (3×3×3=27)

1/27 - 1/27

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