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Let f:R to R be defined by : f(x)={(k-...

Let `f:R to R` be defined by :
`f(x)={(k-2x",","if "x le -1),(2x+3",","if "x gt-1):}.`
If f has a local maximum at x = -1, then a possible value of k is :

A

1

B

0

C

`-(1)/(2)`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
D
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