Question

If x+1x=3, then find the value of X2+1*2

Answer 1

Step-by-step explanation:

x+1/x = 3

Squaring on both sides

(x+1/x)² = (3)²

x²+1/x²+2 = 9

x²+1/x² = 9-2

x²+1/x² = 7