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Let a(n) be the nth term of an AP, if su...

Let `a_(n)` be the nth term of an AP, if `sum_(r=1)^(100)a_(2r)=alpha " and "sum_(r=1)^(100)a_(2r-1)=beta`, then the common difference of the AP is

A

`alpha - beta`

B

`1/100(alpha-beta)`

C

`beta-alpha`

D

`1/200(alpha-beta)`

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The correct Answer is:
B
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