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Let a and d are respectively first and t...

Let `a` and `d` are respectively first and the common difference of an A.P. The `5^(th)` element is `(1)/(9)` and the `9^(th)` element is `(1)/(5)`. Then,

A

`a=(9)/(5)`

B

`d=(5)/(9)`

C

`a=(1)/(45)`

D

45

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The correct Answer is:
C
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