If in a `DeltaABC`, the altitudes from the vertices A, B, C on opposite sides are in H.P, then sin A, sin B, sin C are in

If in a !ABC , the altitudes from the vertices A , B , C on the opposite sides are in H.P., then sin A, sin B , sin C are in

If in a Delta ABC, the altitudes from the vertices A,B,C on opposite sides are in H.P.then sin Asin B, sin C are in

If in a /_\ ABC the altitude from the vertices A,B,C on opposite side are in H.P. then sinA,sinB,sinC are in (A) H.P. (B) Arithmetico-Geometric progression (C) A.P. (D) G.P.

If the sides a ,b ,c of a triangleABC are in HP, prove that sin^2A/2,sin^2B/2,sin^2C/2 are in HP

In any DeltaABC , sin A + sin B + sin C =

In any DeltaABC, find sin A+sin B+ sin C.

If A,B,C are in A.P then (sin A-sin C)/(cos C-cos A)=

If sides a,b,c of Delta ABC are in A.P., then : sin (A/2) cdot sin (C/2)/(sin (B/2) =