If 1 is zero of the polynomial $p (x) = a x^{2} - 3 (a - 1) x - 1$ , then the value of 'a' is

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Solution

The correct option is A 1
If $1$ is the zero of the polynomial, then $p (1) = 0$ .

$p (1) = a - 3 (a - 1) - 1 = 0$

$2 a = 2$

Hence, $a = 1$ .

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