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Eamcet Mathematics
Trigonometry Properties of Triangles
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Q.
In a ΔABC, if (b + c)/11=(c+a)/12=(a+b)/13, then cos C=
A.
7/5
B.
5/7
C.
17/36
D.
16/17
E.
None of the above
View Answer
Correct choice: B
Explanation:
None
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