Find the number of terms of the AP 6,9,12,...............so that their sum is 627
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Answered by
13
Answer:
n=19
Step-by-step explanation:
Formula used:
The sum of n terms of an A.P a, a+d, a+2d,.... is
Given A.P is
6, 9, 12...............
Here, a=6, d=3
Given:
But n cannot be negaative
Answered by
6
Step-by-step explanation:
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