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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 question I can't get the answer

Date Posted: 2 years ago
Views: 205
Eric Nicholas K
Eric Nicholas K
2 years ago
For the first triangle, why is the "4" positive? Shouldn't it be negative since it lies below the horizontal axis?

For the second triangle, the "1" should be negative since it lies to the left of the vertical axis.

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CY Lew
Cy Lew's answer
89 answers (A Helpful Person)
1st
Hi Silin,

Practice more trigonometry question to build up your confidence in manipulating different formulae.
Happy learning. CY..