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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 x gt 3 ) :} `,then at x=3 , `f'(x)` =

A

1

B

-1

C

0

D

does not exist

Text Solution

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The correct Answer is:
D
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