09-08-2021
Mathematics

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Help me with this plss
If x^2+1/x^2[tex]x^{2} +\frac{1}{x^2}=10; then x+\frac{1}{x}=?[/tex]

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LammettHash LammettHash

09-08-2021

(x + 1/x)² = x ² + 2 + 1/x ² = 10 + 2 = 12

==> x + 1/x = ±√12

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