Question

if x + 1/x = 2, then find value of : (i) [x+1/x]^3 pl help me

Answer 1

Answer:

Step-by-step explanation:

Answer 2

x+1/x=2

(x+1/x)^3=2^3

x^3+3x+3/x+1/x^3=8

x^3+3(x+1/x)+1/x^3=8

x^3+6+1/x^3=8

x^3+1/x^3=2