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secondary 3 | A Maths
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lana <3
Lana <3

secondary 3 chevron_right A Maths chevron_right Singapore

stuck with 11 please help!!

Date Posted: 1 year ago
Views: 192

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Xavier Sng
Xavier Sng's answer
801 answers (A Helpful Person)
1st
Hope this helps. Regards
lana <3
Lana <3
1 year ago
thanks! helped a lot. Im not sure i always get to a certain point and just get stuck
Xavier Sng
Xavier Sng
1 year ago
You are most welcome!
Please forgive my impertinence as I hazard to suggest to you three pointers to trigo proof-questions.

Firstly, start the proof from the more complicated side.

Secondly, express all trigo identities in terms of sine and cosine.

Thirdly, keep an eye on the other side you are attempting to arrive at by gearing towards the form shown on the other side.

I hope this helps. Regards
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sstrike
Sstrike's answer
5567 answers (A Helpful Person)
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Xavier Sng
Xavier Sng's answer
801 answers (A Helpful Person)
If you know these trigo identities, which I do not believe is essential at this level, you will be a tad faster.