A-Math - Trigonometry - Four Quadrants of Trigonometry
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| Topic: Trigonometry |
You need to be proficient in Trigonometric Ratio i.e Sin x = Opp/Hyp,
Cos x =Adj/Hyp and Tan x = Opp/Adj. and in which region of the four
quadrants is sin, cos and tan positive or negative. A simple way to
remember the four quadrants is Add (All) Sugar(Sine) To(Tangent)
Coffee (Cosine). Look at the diagram colored red in Step 1 for
reference.
I created this Blog after my students told me that there is very little information about how to solve GCE O Level Math and Additional Math (A-Math) questions on the internet. Even if they manage to find, the solution were for very basic questions. I am a Full-time Math Tutor in Singapore. I tutor mainly in Northern Singapore (Woodlands, Chua Chu Kang, Bukit Panjang, Yishun and Sembawang). I also tutor in Johor Bahru.
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