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secondary 4 | A Maths
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fifahhh
Fifahhh

secondary 4 chevron_right A Maths chevron_right Singapore

(i) couldnt prove it
???

Date Posted: 4 years ago
Views: 252

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Ethan Lie
Ethan Lie's answer
20 answers (Tutor Details)
1st
Actually you almost got it. Just need to sub cos squared x as 1- sin squared x to solve. Good attempt
fifahhh
Fifahhh
4 years ago
ohhh yea thx!