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Question

$(k - 2) x^{2} + 2 k x - 1 = 0$ সমীকরণের মূলগুলো জটিল সংখ্যা হলে k এর মান -

$- 2 \leq k \leq 1$

$- 2 < k < 1$

$- 2 > k > 1$

$- 2 \geq k \geq 1$

ANS : 2

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