SOLUTION: what if the sum of the first 75 numbers starting with 2? please help me!
Algebra.Com
Question 777757: what if the sum of the first 75 numbers starting with 2? please help me!
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
this is an arithmetic sequence
the sum of n terms is
where N= number of terms
a=first term
d is the common difference between two terms
Here a=2,d=1,N=74
Sn =
=37(4+73)
=37(77)
=2849
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