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If f(x) = {{:( x+ 2 , "for " -2 lt xlt3...

If f(x) ` = {{:( x+ 2 , "for " -2 lt xlt3 ),(5,"for " x=3 ),( 8- x,for xgt 3 ) :} ,then ` at x=3 ,f'(x) =

A

`-1`

B

0

C

1

D

does not exist

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Verified by Experts

The correct Answer is:
D
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