MCQ Practice Mathematics 📖 a + b = 7 এবং ab = 12 হলে, $\frac{1}{a^{2}}$ + $\frac{1}{b^{2}}$ এর মান কত ? ক $\frac{11}{49}$খ $\frac{25}{144}$গ $\frac{31}{144}$ঘ $\frac{3}{25}$ Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in BCS 41th Question Bank 2021 Question 150 BCS 41th Question Bank 2021 Question 150 BCS 41th Question Bank Mathematics 2021 Question 9 BCS 41th Question Bank Mathematics 2021 Question 9 BCS 41th Question Bank Mathematics 2021 Question 9 Previous a + b = 9m এবং ab = 18m2 হলে a - b এর মান কত? Nexta + b = 7 এবং ab = 12 হলে, $\frac{1}{a^{2}}$ + $\frac{1}{b^{2}}$ এর মান কত ?
