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Mathematics
Mathematics
Problem
(iv) If
∑
r
=
1
n
I
(
r
)
=
n
(
2
n
2
+
9
n
+
13
)
\sum_{r=1}^{n} I(r) = n(2n^2 + 9n + 13)
∑
r
=
1
n
I
(
r
)
=
n
(
2
n
2
+
9
n
+
13
)
, then find the
∑
r
=
1
n
I
(
r
)
\sum_{r=1}^{n} \sqrt{I(r)}
∑
r
=
1
n
I
(
r
)
.
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