Question

COS
If P1, P2, P3 are the lengths of the altitudes of a triangle from the vertices A,B,C, then
+
COS B
+
cos C
P3
P2
(A)
2ab cosC/2
Aalbic)
(B)
R
(C)
cot A cot Bicot C
(D) 2R​

Answer 1

Answer:

cos B............

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