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secondary 3 | A Maths
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Silin
Silin

secondary 3 chevron_right A Maths chevron_right Singapore

Pls help me with this two question ASAP thx

Date Posted: 2 years ago
Views: 334

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For part a), draw a triangle with sides 3 (O), 4 (A), 5 (H).
tan (a)=3/4, cos(a)=4/5, solve

For part b), draw a triangle with sides 13 (H), 12 (A), 5 (O)
cos(90-theta) = sin(theta) = 5/13
sin(90-theta) = cos(theta) = 12/13
tan(theta) = 5/12
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Elijah Seow
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