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Mathematics
Mathematics
Problem
d
d
x
(
x
2
+
cos
x
)
4
=
\frac{d}{dx}(x^2 + \cos x)^4 =
d
x
d
(
x
2
+
cos
x
)
4
=
(a)
4
(
x
2
+
cos
x
)
(
2
x
−
sin
x
)
4(x^2 + \cos x)(2x - \sin x)
4
(
x
2
+
cos
x
)
(
2
x
−
sin
x
)
(b)
4
(
x
2
−
cos
x
)
3
(
2
x
−
sin
x
)
4(x^2 - \cos x)^3(2x - \sin x)
4
(
x
2
−
cos
x
)
3
(
2
x
−
sin
x
)
(c)
4
(
x
2
+
cos
x
)
3
(
2
x
−
sin
x
)
4(x^2 + \cos x)^3(2x - \sin x)
4
(
x
2
+
cos
x
)
3
(
2
x
−
sin
x
)
(d)
4
(
x
2
+
cos
x
)
3
(
2
x
+
sin
x
)
4(x^2 + \cos x)^3(2x + \sin x)
4
(
x
2
+
cos
x
)
3
(
2
x
+
sin
x
)
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