Arhab's answer to One's Junior College 1 H1 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Arhab
Arhab's answer
7 answers (Tutor Details)
I hope this solution will helps you.
If have doubts feel free to ask
whatsapp 82631761
Jiayang
Jiayang
5 years ago
You've made a mistake in simplifying your z₁²