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Need to know Trig
Need to know Trig
49
Mathematics
11th Grade
12/13/2010
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Term
reciprocal of sin(ø)
 Definition
csc(ø)
Term
reciprocal of cos(ø)
 Definition
sec(ø)
Term
reciprocal of tan(ø)
 Definition
cot(ø)
Term
sin/csc(π/6)
 Definition
1/2, 2/1
Term
sin/csc(30º)
 Definition
1/2, 2/1
Term
cos/sec(π/6)
 Definition
√3/2, 2/√3
Term
cos/sec(30º)
 Definition
√3/2, 2/√3
Term
tan/cot(π/6)
 Definition
1/√3. √3
Term
tan/cot(30º)
 Definition
1/√3, √3
Term
sin/csc(π/4)
 Definition
√2/2, 2/√2
Term
sin/csc(45º)
 Definition
√2/2, 2/√2
Term
cos/sec(π/4)
 Definition
√2/2, 2/√2
Term
cos/sec(45º)
 Definition
√2/2, 2/√2
Term
tan/cot(45º)
 Definition
1, 1
Term
tan/cot(π/4)
 Definition
1, 1
Term
sin/csc(π/3)
 Definition
√3/2
Term
sin/csc(60º)
 Definition
√3/2, 2/√3
Term
cos/sec(π/3)
 Definition
1/2, 2
Term
cos/sec(60º)
 Definition
1/2, 2
Term
tan/cot(π/3)
 Definition
√3, 1/√3
Term
tan/cot(60º)
 Definition
√3, 1/√3
Term
sin/csc(270º)
 Definition
-1, -1
Term
sin/csc(3π/2)
 Definition
-1, -1
Term
cos/sec(270º)
 Definition
0, undefined
Term
cos/sec(3π/2)
 Definition
0, undefined
Term
tan/cot(270º)
 Definition
undefined, 0
Term
tan/cot(3π/2)
 Definition
undefined, 0
Term
sin/csc(90º)
 Definition
1, 1
Term
sin/csc(π/2)
 Definition
1, 1
Term
cos/sec(90º)
 Definition
0, undefined
Term
cos/sec(π/2)
 Definition
0, undefined
Term
tan/cot(90º)
 Definition
undefined, 0
Term
tan/cot(π/2)
 Definition
undefined, 0
Term
sin/csc(180º)
 Definition
0, undefined
Term
sin/csc(π)
 Definition
0, undefined
Term
cos/sec(180º)
 Definition
-1, -1
Term
cos/sec(π)
 Definition
-1, -1
Term
tan/cot(180º)
 Definition
0, undefined
Term
tan/cot(π)
 Definition
0, undefined
Term
sin(0)
 Definition
0
Term
cos(0)
 Definition
1
Term
tan(0)
 Definition
0
Term
cot(0)
 Definition
undefined
Term
sec(0)
 Definition
1
Term
csc(0)
 Definition
undefined
Term
CIRCLE: sin/csc(0)=
 Definition
y/r, r/y
Term
CIRCLE: cos/sec(0)=
 Definition
x/r, r/x
Term
CIRCLE: tan/cot(0)=
 Definition
y/x ,x/y
Term
arc length
 Definition
s(length)=r(radius)ø(RADIANS)
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