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Definition of Functions

If x2-11x+1...

Question

If $x^{2} - 11 x + 1 = 0$ then the value of $x + \frac{1}{x}$ is

A

10

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B

11

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C

12

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D

13

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Solution

The correct option is B 11
$∴ x^{2} + 1 = 3 x$
$\frac{x^{2} + 1}{x} = \frac{11 x}{x}$
$\Rightarrow x + \frac{1}{x} = 3$

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, find the value of

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