MCQ Practice Mathematics 📖 a2 - b2 = 45 এবং a - b = হলে ab এর মান------ ক 13খ 20গ 24ঘ 54 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 Primary Recruitment Model Test 2021 (02) Question 45 Primary Recruitment Model Test 2021 (02) Question 45 Primary Recruitment Model Test 2021 (02) Question 45 Primary Recruitment Model Test 2021 (02) Question 45 Previousa + b = 7 এবং ab = 12 হলে, $\frac{1}{a^{2}}$ + $\frac{1}{b^{2}}$ এর মান কত ? Next a2 + b2 =4 এবং ab=2 হলে, (a-b)2 এর মান নির্ণয় করুন।