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Mathematics
Mathematics
Problem
Determine the principal value of
arctan
1
+
arctan
2
+
arctan
3
\arctan 1 + \arctan 2 + \arctan 3
arctan
1
+
arctan
2
+
arctan
3
. a)
π
2
\dfrac{\pi}{2}
2
π
b)
3
π
4
\dfrac{3\pi}{4}
4
3
π
c)
π
\pi
π
d)
π
−
arctan
3
\pi-\arctan 3
π
−
arctan
3
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