Is this correct? Arithmetic sum and sequence #sum_(n=51)^100 7n#
#sum_(n=51)^100 7n#
#S_n=50/2 (357+700)= =26,425#
#a_100=7(51)+7(100−51)=700#
1 Answer
Apr 19, 2018
See below.
Explanation:
You need the sum from
First term is 7 and common difference is 7:
So you are correct, or we are both wrong.