Question

for what value of p are 2p+1 ,13 ,5p-3,the three consecutive terms of an arithmetic progression?

Answer 1

Hi dear!!!

common difference = a2-a1

so a2-a1 = a3-a2

2a2 = a1+a3

2*13 = 2p+1 +5p-3

26=7p-2

p= 28/7

p = 4

hope it help you !!!

thanks!!