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secondary 4 | A Maths
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Tara
Tara

secondary 4 chevron_right A Maths chevron_right Singapore

I don't understand the question

Date Posted: 3 years ago
Views: 264
Eric Nicholas K
Eric Nicholas K
3 years ago
Good evening Tara! Let me know if you need workings for Q7c and Q7d. Currently I am not able to do the questions as I have classes ongoing and I may not be able to remember it later.
Tara
Tara
3 years ago
I need the workings for c & d

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Raphael Chen
Raphael Chen's answer
2 answers (Tutor Details)
1st
The question is asking you to PROVE that the left hand side (LHS) of this equation is equal to the right hand side (RHS) of this equation.

To solve, use trigonometric identities to help you solve the question.

Use this very same method of trigonometric identities, to solve for 7c & 7d.
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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
Good evening Tara! Here are my workings for this question.