
Grade Select GradeAlgebra
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 it has more than one option correct
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
it has more than one option correct




