Question

Let a,b,c are in arithmetic progression. Then prove that 2a+3,2b+3,2c+3 are also in arithmetic progression

Answer 1

if we subtract them we get 2b+ 3-2a+3=2c+3-2b+3

Answer 2

Answer:

Let a,b,c are in arithmetic progression. Then prove that 2a+3,2b+3,2c+3 are also in arithmetic progression