What is the relationship between sine and cosine?
1 Answer
Jul 3, 2015
Relationship between sin and cos
Explanation:
There are many of them. Here are a few:
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They are the projections of an variable arc x on the 2 x-axis and y-axis of the trig circle.
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Trig identity: sin^2 x + cos ^2 x = 1
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Complementary arcs:
#sin (pi/2 - x) = cos x#