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Let "S" be the set of postive integral v...

Let "S" be the set of postive integral values of "a" for which `(ax^(2)+2(a+1)x+9a+4)/(x^(2)-8x+32) lt 0,AA x in R` .Then,the number of elements in "S" is :

A

3

B

`infty`

C

1

D

0

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