Del 's answer to Cqviezel Liow's Junior College 1 H2 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Del
Del 's answer
12 answers (A Helpful Person)
I could really help you on these type of questions (differentiation, integration, etc). All the steps were stated in the answer.