Say true or false:
$x = - 1$ is the root of $x^{2} - 2 x + 1 = 0$ .

True

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False

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Solution

The correct option is B False
Given equation is:
$x^{2} - 2 x + 1 = 0$
Put $x = - 1$ in the equation,
Then, $1 + 2 + 1 = 4$
Since, the remainder is $4$ , $- 1$ is not the root of the equation.

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Say true or false.

$\frac{1}{0}$ is not rational.

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