Define f(x)=\{\table x^2+bx+c,\text{,}, x

AP EAMCET Engineering 2016 Code C Paper

Section: Mathematics

Question : 39 of 160

Marks: +1, -0

Define f(x)={

x2+bx+c	,	x<1
x	,	x≥1	‌

If f(x) is differentiable at x=1, then (b−c)=

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f′(x)=2x+b	x‌<‌1
=1	x‌>‌1