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29 Cards in this Set
- Front
- Back
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Even trig functions
Odd trig functions |
even - cosine and secant
cos/sin (-t) = cos/sin t odd - sin, tan, csc, cot |
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sin (90-x)=
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cos x
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tan (90-x) =
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cot x
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sec (90-x)=
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csc x
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cos (90-x)=
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sin x
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cot (90-x) =
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tan x
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csc (90-x)=
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sec x
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Reciprocal identity
sin x= |
1/csc x
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Reciprocal identity
cos x= |
1/sec x
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Reciprocal identity
tan x= |
1/cot x
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Reciprocal identity
csc x= |
1/sin x
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Reciprocal identity
sec x= |
1/cos x
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Reciprocal identity
cot x= |
1/tan x
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Quotient identity
tan x = |
sin x/cos x
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Quotient identity
cot x= |
cos x/sin x
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Pythagorean identity
1= |
sin^2 x + cos^2 x
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Pythagorean identity
sec^2 x= |
1 + tan^2 x
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Pythagorean identity
csc^2 x= |
1 + cot^2 x
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radius=
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square root of x^2 + y^2
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radius identity
sin x= |
y/r
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radius identity
cos x= |
x/r
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radius identity
tan x= |
y/x
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radius identity
csc x= |
r/y
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radius identity
sec x= |
r/x
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radius identity
cot x= |
x/y
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REFERENCE ANGLES
in Quadrant 1 |
x-0, x-0pi
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REFERENCE ANGLES
in Quadrant 2 |
180-x, pi-x
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REFERENCE ANGLES
in Quadrant 3 |
x-180, x-pi
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REFERENCE ANGLES
in Quadrant 4 |
360-x, 2pi-x
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