If \( a, b, c \), are in A.P. ; \( b, c, d \) are in G.P. and \( c, d, e \), are in H.P., then \...

preview_player
Показать описание
If \( a, b, c \), are in A.P. ; \( b, c, d \) are in G.P. and \( c, d, e \), are in H.P., then \( a, c, e \), are in
(A) A.P.
(B) G.P.
(C) H.P.
(D) none of these
Рекомендации по теме