splling mistake

WBCS Exam Preparation[WBCS 2010] [Marks:1]

 

Q. \( \left ( {1 - {1 \over 2}} \right) \left( {1 - {1 \over 3}} \right) \left( {1 - {1 \over 4}} \right) \cdots \cdots \left( {1 - {1 \over m}} \right) \) -এর মান হল

A. 1

B. \({1 \over m} \)

C. \( {1 \over 2m} \)

D. \( {1 \over {1.2.3 \cdots \cdots (m - 1)m}} \)

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