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Eamcet Mathematics
Trigonometry Inverse Trigonometric Functions
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Q.
If tan
-1
x + tan
-1
y + tan
-1
z = π , then 1/xy + 1/yz + 1/zx =
A.
0
B.
1
C.
1/xyz
D.
xyz
E.
None of the above
View Answer
Correct choice: B
Explanation:
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