Question
Which of the following are in arithmetic progression
2, 6, 10, 14
✓
Answer
2, 6, 10, 14, ....
$d_1=6-2=4$
$d_2=10-6=4$
$d_3=14-10=4$
Since $d_1=d_2=d_3$ the given sequence is in arithmetic progression.
$d_1=6-2=4$
$d_2=10-6=4$
$d_3=14-10=4$
Since $d_1=d_2=d_3$ the given sequence is in arithmetic progression.
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