MCQ Practice Mathematics 📖 cotθcot3θ=1 সমীকরণের সাধারণ সমাধান - ক π(2n+1)π4খ π(2n+1)π8গ π(2n-1)π2ঘ πnπ4 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 DU KA Unit Question Bank Mathematics 2018-19 Question 14 DU KA Unit Question Bank Mathematics 2018-19 Question 14