If $[x 1 1 x] = 3$ , then find the value of $x$ .

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[x 1 1 x] = 3

, then find the value of

x

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Text solutionVerified

We have,

[x 1 1 x] = 3

\Rightarrow x^{2} - 1 = 3

\Rightarrow x^{2} = 4

\Rightarrow x = \pm 2

Hence, this is the answer.

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