Asked by john
the frst term of AP is 4 and the last term is 79.given that the sum of the AP is 996, find the number of terms and the commmon difference.
Answers
Answered by
Steve
a=4
Sn = n/2 (8+(n-1)d) = 996
An = 4+(n-1)d = 79
n = 24
d = 75/23
Sn = n/2 (8+(n-1)d) = 996
An = 4+(n-1)d = 79
n = 24
d = 75/23
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