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Mathematics
Mathematics
Problem
Let
∑
k
=
1
n
a
k
=
α
n
2
+
β
n
\sum_{k=1}^{n} a_k = \alpha n^2 + \beta n
∑
k
=
1
n
a
k
=
α
n
2
+
β
n
and
a
10
=
59
a_{10} = 59
a
10
=
59
and
a
6
=
7
a
1
a_6 = 7a_1
a
6
=
7
a
1
, then find
α
+
β
=
\alpha + \beta =
α
+
β
=
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