A) \[\frac{1}{2}\]
B) \[0\]
C) \[\frac{1}{9}\]
D) \[\frac{1}{2520}\]
Correct Answer: A
Solution :
\[\frac{1}{9}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+\frac{1}{30}+\frac{1}{42}+\frac{1}{56}+\frac{1}{72}\] \[=\frac{280+420+210+126+84+60+45+35}{2520}\]\[=\frac{1260}{2520}=\frac{1}{2}\]You need to login to perform this action.
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