Kger Liang's answer to Low Jacks's Secondary 4 A Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Kger Liang
Kger Liang's answer
24 answers (A Helpful Person)
1st
Try to play with the formulas that you've learnt for trigo identity :)