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f(x)= (1)/(sqrt(9-4x^(2)) decreases in...

`f(x)= (1)/(sqrt(9-4x^(2))` decreases in

A

`(-(3)/(2), (3)/(2))`

B

`(0, 3)`

C

`(0, infty)`

D

`{5}`

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The correct Answer is:
A
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