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Mathematics
Mathematics
Problem
If
d
d
x
f
(
x
)
=
a
x
+
b
\frac{d}{dx}f(x) = ax+b
d
x
d
f
(
x
)
=
a
x
+
b
, such that
f
(
0
)
=
0
f(0) = 0
f
(
0
)
=
0
. Then
f
(
x
)
f(x)
f
(
x
)
is a)
a
+
b
a + b
a
+
b
b)
a
x
2
2
+
b
x
+
c
\frac{ax^2}{2} + bx + c
2
a
x
2
+
b
x
+
c
c)
a
x
2
2
+
b
x
\frac{ax^2}{2} + bx
2
a
x
2
+
b
x
d)
b
b
b
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