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Mathematics
Problem
Calculate
f
′
′
(
0
)
f''(0)
f
′′
(
0
)
for the function
f
(
x
)
=
x
2
+
1
2
x
+
1
.
f(x)=\dfrac{x^{2}+1}{2x+1}.
f
(
x
)
=
2
x
+
1
x
2
+
1
.
a)
6
6
6
b)
10
10
10
c)
−
10
-10
−
10
d)
−
2
-2
−
2
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