Eric Nicholas K's answer to LockB's Secondary 3 A Maths Singapore question.
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The ASTC quadrants which I will need for Q6; this also explains why you have the three formulae
sin (180 - x) = sin x
cos (180 - x) = - cos x
tan (180 - x) = - tan x
which you learnt just one or two weeks ago.
sin (180 - x) = sin x
cos (180 - x) = - cos x
tan (180 - x) = - tan x
which you learnt just one or two weeks ago.
Date Posted:
3 years ago
I mean Q7, since Q6 is not there
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