1.

Q: Find the value of $$ {1\over{2×5}}+{1\over {5×8}}+{1\over {8 × 11}}+......{1\over {23 × 26}}=?$$

A. $$ {1\over 11}$$
B. $$ {3\over 11}$$
C. $$ {2\over 13}$$
D. $$ {4\over 11}$$
Answer» D. $$ {4\over 11}$$


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