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$1 + \sqrt{2}$ মূলবিশিষ্ট দ্বিঘাত সমীকরণ কোনটি?

x^{2} - 2 x - 1 = 0

x^{2} + 2 x - 1 = 0

x^{2} - 2 x + 1 = 0

x^{2} + 2 x + 1 = 0

ANS : 1

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