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secondary 4 | A Maths
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Rosalie
Rosalie

secondary 4 chevron_right A Maths

Why can't I do it using quotient rule?
The answer is in pencil

Date Posted: 7 years ago
Views: 375
Allan
Allan
7 years ago
You can't do that because sin3x is not equal to sin0.5x. Why don't you differentiate each term individually. It's much easier

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Kervyn
Kervyn's answer
18 answers (Tutor Details)
1st
Your third step of factorization is not correct. You should have factorized it into a sin^2 + cos^2 =1 form.
Rosalie
Rosalie
7 years ago
Ohh, thank you! :)