CBSE Class 9 Answered
Is 571 a term in the A.P. series: 27, 33, 39, 45?
Asked by | 30 Oct, 2008, 10:07: PM
Expert Answer
Here a = 27, d= 33-27 = 6
Let an = 571
So 571 = a + (n-1) d= 27 + (n-1) x 6
i.e 571 - 27 = 544 = (n-1) x 6
544/ 6 = (n-1)
i.e 90.66 = n-1
n-1 is not a natuaral number o n is not a natural number .
So 571 can not be a term of the given AP
Answered by | 31 Oct, 2008, 02:44: PM
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