যদি $a^{2} - \sqrt{2} a + 1 = 0$ হয় তবে-
i. $a + \frac{1}{a} = \sqrt{2}$
ii. $a^{2} + \frac{1}{a^{2}} = 2$
iii. $a^{3} + \frac{1}{a^{3}} = \sqrt{2}$
নিচের কোনটি সঠিক?

Created: 1 year ago | Updated: 7 months ago

Updated: 7 months ago

i ও ii

i ও iii

ii ও iii

i, ii ও iii

নবম-দশম শ্রেণি (মাধ্যমিক) ঢাকা বোর্ড গণিত

Des

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প্রশ্ন:
যদি $a^{2} - \sqrt{2} a + 1 = 0$ হয় তবে-
i. $a + \frac{1}{a} = \sqrt{2}$
ii. $a^{2} + \frac{1}{a^{2}} = 2$
iii. $a^{3} + \frac{1}{a^{3}} = \sqrt{2}$
নিচের কোনটি সঠিক?

সঠিক উত্তর : i ও iii

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Des.

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যদি $a^{2} - \sqrt{2} a + 1 = 0$ হয় তবে-
i. $a + \frac{1}{a} = \sqrt{2}$
ii. $a^{2} + \frac{1}{a^{2}} = 2$
iii. $a^{3} + \frac{1}{a^{3}} = \sqrt{2}$
নিচের কোনটি সঠিক?

প্রশ্ন:
যদি $a^{2} - \sqrt{2} a + 1 = 0$ হয় তবে-
i. $a + \frac{1}{a} = \sqrt{2}$
ii. $a^{2} + \frac{1}{a^{2}} = 2$
iii. $a^{3} + \frac{1}{a^{3}} = \sqrt{2}$
নিচের কোনটি সঠিক?

গণিত

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