Question
Show that the progressions given below is an AP. Find the first term, common difference and next term.
9, 15, 21, 27, ....
9, 15, 21, 27, ....
✓
Answer
A sequence in which each term differs from its preceding term by a constant is called an AP.
15 - 9 = 6
12 - 15 = 6
27 - 21 = 6
clearly, the progression an AP.
The first term = 9
common difference = 27 + 6 = 33
15 - 9 = 6
12 - 15 = 6
27 - 21 = 6
clearly, the progression an AP.
The first term = 9
common difference = 27 + 6 = 33
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