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A function f (x) is defined by : f(...

A function f (x) is defined by :
`f(x)={(px^2+1,"for"xlt1),(x+p,"for"xgt1):}`
if `f (x)` be differentiable at `x = 1` then `p =`

A

2

B

`1/2`

C

`-2`

D

`-1/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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