Question

${x}^{2} + 1 \div {x}^{2} = 51 .find \: value \: of \: x - 1 \div x$
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Answer 1

Step-by-step explanation:

x² + 1/x² = 51

let x² = a

so, new equation is a + 1/a = 51

a² + 1 = 51a

so the quadratic equation is a² - 51a +1 = 0

solve to get answer