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Solve (1-frac(1)(2))(1-frac(1)(3))(1-fra...

Solve `(1-frac(1)(2))(1-frac(1)(3))(1-frac(1)(4))....(1-frac(1)(n))`

A

`frac(n-1)(n)`

B

`frac(1)(n)`

C

`frac(n)(n+1)`

D

n

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