MCQ Practice Mathematics 📖 ∫dxxx2-1=f(x)+c হলে, f(x) সমান - ক cosxখ sec-1xগ sin xঘ sin-1x 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 2017-18 Question 15 DU KA Unit Question Bank Mathematics 2017-18 Question 15 DU KA Unit Question Bank Mathematics 2017-18 Question 15