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secondary 4 | A Maths
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Kathy
Kathy

secondary 4 chevron_right A Maths chevron_right Singapore

Thank you

Date Posted: 1 month ago
Views: 23

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Eric Nicholas K
Eric Nicholas K's answer
1634 answers (Tutor Details)
1st
First question
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Eric Nicholas K
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1634 answers (Tutor Details)
Second and third question
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Eric Nicholas K
Eric Nicholas K's answer
1634 answers (Tutor Details)
Here's the fourth question. I spent a fair bit of time trying to maneuver the equations around.

Part (a) has nothing to do with alpha and beta. It's trying to manipulate the equations until the equation of interest is obtained. Out of the four methods I have listed, my first method is actually the proper way to solve these type of questions (but these questions are just for practice and unlikely to appear in the exams).
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Eric Nicholas K
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1634 answers (Tutor Details)
Here's my working for the last question. I apologise in advance if my workings are too unclear or too advanced.
Kathy
Kathy
1 month ago
Thank u so much help me so much