Question

. If x - 1/ = 3 , find the value of 3 - 1/ ^3

Answer 1

Answer:

x-1/x=3

(x-1/x) ³=3³

x³-1/x³-3*x*1/x*(x-1/x) =27

x³-1/x³-3*3=27

x³-1/x³=36