Eric Nicholas K's answer to Skr's Secondary 3 E Maths Singapore question.
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The supplementary angle rules are
sin (180 - x) = sin x
cos (180 - x) = -cos x
tan (180 - x) = -tan x
(Supplementary angles along a line are two angles side by side along a line which adds up to 180)
sin (180 - x) = sin x
cos (180 - x) = -cos x
tan (180 - x) = -tan x
(Supplementary angles along a line are two angles side by side along a line which adds up to 180)
Date Posted:
5 years ago
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