If $x+\frac{1}{x}=2$, then $x^3+\frac{1}{x^3}=$ ?
Answer & explanation
Correct answer: option 3
If $x+\frac{1}{x}=2$
$x^3+\frac{1}{x^3}=$
Put x = 1
$1^3+\frac{1}{1^3}$ = 2
If $x+\frac{1}{x}=2$, then $x^3+\frac{1}{x^3}=$ ?
Correct answer: option 3
If $x+\frac{1}{x}=2$
$x^3+\frac{1}{x^3}=$
Put x = 1
$1^3+\frac{1}{1^3}$ = 2