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Byju's Answer
Standard XII
Mathematics
Point of Inflection
Find the slop...
Question
Find the slope of the tangent to the curve
y
=
3
x
4
−
4
x
at x = 4.
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Solution
The given curve is
y
=
3
x
4
−
4
x
.
Thus, the slope of the tangent to the given curve at
x
=
4
is given by,
[
d
y
d
x
]
x
=
4
=
[
12
x
3
−
4
]
x
=
4
=
12
(
4
)
3
−
4
=
12
(
64
)
−
4
=
764
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0
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