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#12618 Bangla Language & Literature মান নির্ণয় Level 0

a + b = 7 এবং ab = 12 হলে, $\frac{1}{a^{2}}$ + $\frac{1}{b^{2}}$ এর মান কত ?

  1. A $\frac{11}{49}$
  2. B $\frac{25}{144}$
  3. C $\frac{31}{144}$
  4. D $\frac{3}{25}$
Answer: B - $\frac{25}{144}$

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