`4,9,14,19,24`
A sequence is arithmetic when its terms continually increase or decrease by the same number called as the common difference.
So, let's find the common difference,
`a_2-a_1=9-4=5`
`a_3-a_2=14-9=5`
`a_4-a_3=19-14=5`
`a_5-a_4=24-19=5`
So the terms are increasing by the common difference of 5 which shows that the sequence is arithmetic.
`4,9,14,19,24`
A sequence is arithmetic when its terms continually increase or decrease by the same number called as the common difference.
So, let's find the common difference,
`a_2-a_1=9-4=5`
`a_3-a_2=14-9=5`
`a_4-a_3=19-14=5`
`a_5-a_4=24-19=5`
So the terms are increasing by the common difference of 5 which shows that the sequence is arithmetic.
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