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Mathematics
Mathematics
Problem
Find the value of
(
a
2
+
a
2
−
1
)
4
+
(
a
2
−
a
2
−
1
)
4
(a^2 + \sqrt{a^2 - 1})^4 + (a^2 - \sqrt{a^2 - 1})^4
(
a
2
+
a
2
−
1
)
4
+
(
a
2
−
a
2
−
1
)
4
.
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