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Eamcet Mathematics
Trigonometry Properties of Triangles
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Q.
In ΔABC, (b - c)cotA/2 + (c - a)cotB/2 + (a - b)cotC/2 is equal to
A.
0
B.
1
C.
±1
D.
2
E.
None of the above
View Answer
Correct choice: A
Explanation:
None
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