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Eamcet Mathematics
Trigonometry Properties of Triangles
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Q.
In ΔABC, if cos A + cos C = 4 sin
2
1/2 B, then a, b, c are in
A.
A. P.
B.
G. P.
C.
H. P.
D.
A. G. P
E.
None of the above
View Answer
Correct choice: A
Explanation:
None
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