Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Mathematics
The derivative of the function f(x)=x is
Q. The derivative of the function
f
(
x
)
=
x
is
181
160
Limits and Derivatives
Report Error
A
0
B
1
C
∞
D
None of these
Solution:
It is easy to see that the derivative of the function
f
(
x
)
=
x
is the constant function 1. This is because
f
′
(
x
)
=
h
→
0
lim
h
f
(
x
+
h
)
−
f
(
x
)
=
h
→
0
lim
h
x
+
h
−
x
=
h
→
0
lim
1
=
1