NDA Math Limit, Continuity and Differentiability

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Question : 76 of 105

Marks: +1, -0

Consider the following function :
1. f(x)={

1

x

if

x≠0

0

if

x=0

f(x)={

2x+5	if	x>0
x2+2x+5	if	x≤0

which of the above functions is /are derivable at x=0 ?

[NDA II 2015]

1 only
2 only
Both 1 and 2
Neither 1 nor 2

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