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Mathematics
Mathematics
Problem
If A and C are two angles such that
A
+
C
=
3
π
4
A + C = \frac{3\pi}{4}
A
+
C
=
4
3
π
, then
(
1
+
cot
A
)
(
1
+
cot
C
)
(1 + \cot A)(1 + \cot C)
(
1
+
cot
A
)
(
1
+
cot
C
)
equals - (A) 1 (B) 2 (C) -1 (D) -2
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