If underset( x rarr 1)("Lim")( ( 1-x)(1...

If `underset( x rarr 1)("Lim")( ( 1-x)(1-x^(2))(1-x^(3))"......."(1-x^(2n)))/([(1-x) ( 1-x^(2))(1-x^(3))"........." ( 1-x^(n))]^(2))` the n show that L can be equal to
`underset( r = 1) overset( n ) (Pi)(n+r)/( r ) `

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