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tan x
sinx/cosx
cot x
cosx/sinx
sec x
1/cosx
csc x
1/sinx
cot x
1/tanx
Pythagorean Identity
sin2x + cos2x = 1
0
cosx = 1, sinx = 0
Ļ/6
cosx = sqrt3/2 sinx = 1/2
Ļ/4
cosx = sqrt2/2 sinx = sqrt2/2
Ļ/3
cosx = Ā½ sinx= sqrt3/2
Ļ/2
cosx = 0 sinx = 1
Ļ
cosx = -1 sinx = 0
3Ļ/2
cosx = 0 sinx = -1
fā(x) tanx
sec(2)x
fā(x) cotx
-csc(2)x
fā(x) secx
secxtanx
fā(x) cscx
-cscxcotx
fā(x) logax
x/xlna
fā(x) a(x)
lna(a)*x
Note 
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