Question

Question 1 (iv)
Which of the following form an AP? Justify your answer.
11, 22, 33, ….

Answer 1

$Here,t_1=11,t_2=22,t_3=33$
$t_2-t_1=22-11=11$
$t_3-t_2=33-22=11$
$t_4-t_3=33-22=11$
Clearly, the difference between successive terms is same.
Therefore, given list of numbers form an AP.