Question

if X²+1/x²=66 ;find the value of x+1/x

Answer 1

The answer is -0.984 approximately. I hope it helps u

Answer 2

${x}^{2} + \frac{1}{ {x}^{2} } = 66 \\ {(x + \frac{1}{x}) }^{2} - 2 = 66 \\ {(x + \frac{1}{x} )}^{2} = 68 \\ x + \frac{1}{x} = \sqrt{68} \\ x + \frac{1}{x } = 8.24$