a,b,c are three distinct real numbers and they are in G.P. If a+b+c = xb, then prove that x<-1 or x>3.
Let us consider
when, both ratio is (+)ve.
A.M > G.M
Matrix a × value of is –2.
For example, let us take a G.P series 1, –2, 4.
Hence, a = 1, b = –2 and c = 4.
let us take another G.P series 6, –12, 24.