Question

IF x+1/x=3 then find x³+1/x³​

Answer 1

Answer:

This is the solution......

Answer 2

Answer:

18

Step-by-step explanation:

x+1/x = 3 (given )

Cube both sides .

(x+1/x)^3 = 3^3

x^3 + 3x + 3/x+ 1/x^3 = 27

x^3 + 1/x^3 + 3(x+1/x) = 27

x^3 + 1/x^3 + 9 = 27

x^3 + 1/x^3 = 27-9

=18