Trigonometry
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16 Terms
1
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sine
opposite/hypotenuse
2
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cosine
adjacent/hypotenuse
3
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tangent
opposite/adjacent
4
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Pythagorean Identity (main formula)
sin(angle)²+cos(angle)²=1
5
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side lengths for 30-60-90 right triangle
2x, x*rad3, x
6
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side lengths for 45-45-90 right triangle
x*rad2, x, x
7
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reciprocal identities
cosecant, secant, cotangent
8
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cosecant
hypotenuse/opposite
9
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secant
hypotenuse/adjacent
10
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cotangent
adjacent/opposite
11
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radians to degrees
pi/180 * angle
12
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degrees to radians
180/pi * angle
13
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360 degrees to radians
2pi radians
14
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180 degrees to radians
pi radians
15
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90 degrees to radians
pi/2 radians
16
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270 degrees to radians
3pi/2 radians
Note 
Flashcards (100)