Jerrie Shaffee's answer to Sonia's Junior College 2 H2 Maths Singapore question.

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Jerrie Shaffee
Jerrie Shaffee's answer
3 answers (Tutor Details)
1st
Not sure if you have this formula in your data sheet. If so you can watch this video to better understand it

https://www.youtube.com/watch?v=gPQ9D8v0bM0