MCQ Practice Mathematics 📖 যদি ( x-y)2 =12 হয় এবং xy=1 হয় তবে\[x^{2}+y^{2}\] এর মান কতো ? 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 DPE Teacher Recruitment Preliminary Question Bank Quiz and Solution General math 2019 Question 5 DPE Teacher Recruitment Preliminary Question Bank Quiz and Solution General math 2019 Question 5 Previousযদি x + 2y = 4 এবং xy = 2 হয়, তবে x = কত ? Next যদি x4 – 2x2 + 1 =0 হয়, তবে x এর মান কত?