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sin(a + b)
(sin a x cos b) + (sin b x cos a)
sin 2 x
2 sin x cos x
sin(a-b)
(sin a x cos b) - (sin b x cos a)
sinĀ²x + cosĀ²x
1
cos(2x) in terms of cosine
1
cos(2x) in terms of cosine
2cosĀ²x -1
cos(2x) in terms of sine and cosine
cosĀ²x - sinĀ²x
cos(a+b)
(cos a x cos b) - (sin a x sin b)
cos (a-b)
(cos a x cos b) + (sin a x sin b)
a > b
dimpled cardioid
a < b
inner loop
a = b
heart shaped
radius in a + bi form
r = (aĀ² + bĀ²)^1/2
y-coordinate in terms of radius and sin
y = r ā¢ sin x
x-coordinate in terms of r and cosine
x = r ā¢ cos x
1/csc x
sin x
1/sinx
csc x
1/secx
cos x
1/cosx
sec x
since/cosx
tanx
cosx/sinx
cotx
1 + tanĀ²x
secĀ²x
1 + cotĀ²x
cscĀ²x