If $K+\frac{1}{K}=3$, then what is the value of $\frac{1}{K^3}+K^3$ ?
Answer & explanation
Correct answer: option 3
If $K+\frac{1}{K}=3$
what is the value of $\frac{1}{K^3}+K^3$
$K+\frac{1}{K}=3$
then, $\frac{1}{K^3}+K^3$ = 33 - 3 × 3 = 18
If $K+\frac{1}{K}=3$, then what is the value of $\frac{1}{K^3}+K^3$ ?
Correct answer: option 3
If $K+\frac{1}{K}=3$
what is the value of $\frac{1}{K^3}+K^3$
$K+\frac{1}{K}=3$
then, $\frac{1}{K^3}+K^3$ = 33 - 3 × 3 = 18