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Precal Notecards
n/a
14
Mathematics
11th Grade
03/01/2011
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Term
(pi)
 Definition
180 degrees
Term
0, 2(pi)
 Definition
0/360 degrees
Term
(pi)/4
 Definition
45degrees
Term
cofunctions
 Definition
sin&cos, tan&cot, csc&sec
Term
60degrees: Sin, cos, tan
 Definition
sin: (square root of 3)/2
Cos: 1/2
tan: (square root of 3)
Term
30 degrees (sin/cos/tan)
 Definition
sin: 1/2
cos: (square root of 3)/2
tan: (square root of 3)/3
Term
45 degrees (sin,cos,tan)
 Definition
sin: (square root of 2)/2
cos: (square root of 2)/2
tan: 1
Term
Quotient Identities
 Definition
tan=sin/cos
cot=cos/sin
Term
Pythagoream Identities
 Definition
cos(squared) + sin(squared) = 1
Term
Right Triangle Trig Functions
 Definition
sin=y/r
cos=x/r
tan=y/x
Term
Trig Functions of Quadrantal Angles: 90
 Definition
sin: 1
cos: 0
tan: undefined
Term
Trig Functions of Quadrantal Angles: 180
 Definition
sin: 0
cos:-1
tan: 0
Term
Trig Functions of Quadrantal Angles:270
 Definition
sin: -1
cos: 0
tan: undefined
Term
Trig Functions of Quadrantal Angles:360
 Definition
sin: 0
cos: 1
tan: 0
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