Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

junior college 2 | H3 Maths
No Answers Yet

Help Jessie Low! Anyone can contribute an answer, even non-tutors.

Answer This Question
Jessie Low
Jessie Low

junior college 2 chevron_right H3 Maths

I don't understand how to get that step. Especially,how did it become (nπ)^2?

Date Posted: 6 years ago
Views: 379
Tang Jiacheng
Tang Jiacheng
6 years ago
because when u integrate sin(n*pi*t) another n*pi will appear?