Tính
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VD
C1. \( A = (1 + \frac{1}{2})(1 + \frac{1}{3})(1 + \frac{1}{4})(1 + \frac{1}{5})...(1 + \frac{1}{2024}) \)
C2. \( B = \frac{3}{4} + \frac{3}{5} + \frac{3}{6} + \frac{3}{7} + \frac{3}{8} + \frac{3}{9} + \frac{3}{10} \)
C3. \( C = \frac{1}{2} + \frac{2}{5} + \frac{1}{3} + \frac{2}{7} + \frac{1}{4} + \frac{2}{9} + \frac{1}{5} \)
C4. \( D = (1 - \frac{1}{2})(1 - \frac{1}{3^2})(1 - \frac{1}{4^2})...(1 - \frac{1}{2024^2}) \)
VD
C1. \( A = (1 + \frac{1}{2})(1 + \frac{1}{3})(1 + \frac{1}{4})(1 + \frac{1}{5})...(1 + \frac{1}{2024}) \)
C2. \( B = \frac{3}{4} + \frac{3}{5} + \frac{3}{6} + \frac{3}{7} + \frac{3}{8} + \frac{3}{9} + \frac{3}{10} \)
C3. \( C = \frac{1}{2} + \frac{2}{5} + \frac{1}{3} + \frac{2}{7} + \frac{1}{4} + \frac{2}{9} + \frac{1}{5} \)
C4. \( D = (1 - \frac{1}{2})(1 - \frac{1}{3^2})(1 - \frac{1}{4^2})...(1 - \frac{1}{2024^2}) \)