Question

if x+1/x=3,then find the value of x^2+1/x^2​

Answer 1

Answer:

$x + \frac{1}{x} = 3$

$( {x + \frac{1}{x} })^{2} = {3}^{2}$

${x}^{2} + \frac{1}{ {x}^{2} } + 2 = 9$

${x}^{2} \frac{1}{ {x}^{2} } = 7$