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NDA Math Differentiation
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© examsnet.com
Question : 63
Total: 64
If
z
=
f
∘
f
(
x
)
where
f
(
x
)
=
x
2
,then what is
d
z
d
x
equal to ?
[NDA I 2014]
x
3
2
x
3
4
x
3
4
x
2
Validate
Solution:
f
(
x
)
=
x
2
z
=
f
o
f
(
x
)
=
x
4
⇒
d
z
d
x
=
4
x
3
© examsnet.com
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