If a, b and c be there distinct real numbers in G.P and a + b + c = xb, then x cannot be:

If a, b and c be there distinct real numbers in G.P and a + b + c = xb, then x cannot be:

1 Answer

127 votes

, b, br G.P (

Given a + b + c = xb

b/r + b + br = xb

b = 0 (not possible)

Or 1 + r + = x

x −1 = r+

x −1 > 2 or x−1<−2

x > 3 or x < −1

So x cannot be 2.

127 votes

127