Question

find the sum of the arithmetic series with first term 1,common difference 3,last term 100​

Answer 1

Answer:

Slove and get answer

Step-by-step explanation:

a=1

d=3

An=100

An=a+(n-1)d

100=1+(n-1)3

99/3=n-1

33+1=n

34=n

Niw

Sn=n/2(2a+(n-1)d)

=34/2(2+33*3)

=17(2+99)