question_answer

The v.lu. of \[\left( 1-\frac{1}{3} \right)\left( 1-\frac{1}{4} \right)\left( 1-\frac{1}{5} \right).......\left( 1-\frac{1}{n} \right)\] is equal to

A)  \[\frac{1}{n}\]                 

B)         \[\frac{2}{n}\]  

C)  \[\frac{3}{n}\]                   

D)         \[\frac{4}{n}\]