Slash's answer to Jesse's Secondary 2 Maths Singapore question.
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Cosine rule.
Date Posted:
3 years ago
I do not understand
Not enough explanation
It's a formula in trigonometry but I'm not sure you'd have learnt it in sec 2..
Yeah, either way, that’s cosine rule. I am not sure if you have learnt it or not but well...
Ok tks
Yup, so would appreciate if you don’t anyhow down vote lol
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