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If f (x) = {{:((sqrt(1 + ax )- sqrt(1- a...

If `f (x) = {{:((sqrt(1 + ax )- sqrt(1- ax ))/(x)"," -1 le x lt 0), ((x ^(2) +2)/(x-2)"," 0 le x le 1):}`
continuous on `[-1,1],` then a =

A

`-1`

B

`-2`

C

1

D

2

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The correct Answer is:
A
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