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secondary 3 | A Maths
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Jason Lim
Jason Lim

secondary 3 chevron_right A Maths chevron_right Singapore

Pls help with c) thanks in advance

Date Posted: 3 years ago
Views: 219
lim
Lim
3 years ago
Come find me, i m king of teach ing trigo, no good no fee

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A identity is useful for this
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Shanmugam Udhaya
Shanmugam Udhaya's answer
27 answers (Tutor Details)
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Jason Lim
Jason Lim
3 years ago
Can u elaborate further i dont get it by what a identity is thanks :)
Shanmugam Udhaya
Shanmugam Udhaya
3 years ago
Sin^2(x) +cos^2(x) =1
Or you can use basic angles sin(pi/4) =sin 45 and do normal calculations
Jason Lim
Jason Lim
3 years ago
Thank u i understand thanks for ur elaboration
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Siow Lin Hoe
Siow Lin Hoe's answer
658 answers (Tutor Details)
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