Jiayang's answer to Xiaoyang's Junior College 1 H2 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jiayang
Jiayang's answer
1883 answers (Tutor Details)
Pls simplify fully
Jiayang
Jiayang
6 years ago
Also for constants, separate it out from the summation. You can neaten your work that way. And this is called method of difference
Xiaoyang
Xiaoyang
6 years ago
Thanks