Question

If x-1/x=3,then the value x×x+1/x×x is :​

Answer 1

$\frac{3 \times 3 + 1}{3 \times 3} \\ \frac{10}{9}$

Answer 2

Answer:

x²+1/x² = 11

Step-by-step explanation:

x-1/x = 3

=> (x-1/x)² = 9

=> x²+1/x²-2*x*1/x = 9

=> x²+1/x²-2 = 9

=> x²+1/x² = 9+2

=> x²+1/x² = 11

using formula (x-y)² = x²+y²-2xy