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in a ∆ABC ,the line segments AD,BE and CF are three altitudes.if R is the circumradius of the ∆ABC ,a side of the ∆DEF will be (A) Rsin 2A (B) c cosB (C) a sin A (D) b cosB

in a ∆ABC ,the line segments  AD,BE and CF are three altitudes.if R is the circumradius of the ∆ABC ,a side of the ∆DEF will be 
(A) Rsin 2A   (B) c cosB   (C) a sin A (D) b cosB

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1 Answers

Aditya Dev
28 Points
5 years ago
It has more than one option correct …

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