"Find out   which of the following sequences are arithmetic progressions. For those which
Channel: Doubtnut
Date: 2020-06-28

"Find out
 
  which of the following sequences are arithmetic progressions. For those which
 
  are arithmetic progressions, find out the common difference.
 `a+b ,\ (a+1)+b ,\ (a+1)+(b+1),\ (a+2)+(b+1),\ (a+2)+(b+2),\ ddot`
 (ii) `1^2,\ 3^2,\ 5^2,\ 7^2,\ dot`
 
 (iii) `1^2,\ 5^2,\ 7^2,\ 73 ,\ `"