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Mathematics
Mathematics
Problem
Find the exact value of
(
2
+
3
)
(
2
−
3
)
(\sqrt{2}+3)(\sqrt{2}-3)
(
2
+
3
)
(
2
−
3
)
. a)
11
11
11
b)
7
7
7
c)
−
7
-7
−
7
d)
−
4
-4
−
4
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