MCQ Practice Mathematics 📖 1+3+5+6+......(2x-1) ? A $\frac{x(x+1)}{2}$ B x + 1 C কোনটিই নয় D x(x-1) 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 Previous১+৩+৫+.........+১৯= কত হবে ? Next১+৩+৫+৭+৯+.............+৫১ = ?
