Asked by John
The first term of an AP is -12 and the last term is 40 if the sum of the progression is 196, find the number of terms an the common difference
Answers
Answered by
R_scott
196 / (40 - 12) = n / 2
d = (40 - -12) / (n - 1)
d = (40 - -12) / (n - 1)
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