Question

If x - (1/x) = 3, then x³ - (1/x³) =​

Answer 1

Answer:

18

Step-by-step explanation:

Given,

x - _1_ = 3

x

cubic both side. So

x³-_1_ -3×_1_ ×x³[ x³-_1_] = 9

x³ x³ x³

x³-_1_-3×3 = 9

x³

x³-_1_=9+9

x³

x³-_1_ = 18. Answer

x³