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40 Cards in this Set
- Front
- Back
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radian to degree
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180/pi
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degree to radian
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pi/180
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length of circular arc
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s=r@ (theta) in radians
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area of a sector of a circle
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A= (1/2)r^2@
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cost
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x
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sint
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y
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pythagorean identity
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cost^2+sint^2=1
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0
sint cost |
sint 0
cost 1 |
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pi/6
sint cost |
sint 1/2
cost rt3/2 |
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pi/4
sint cost |
sint rt2/2
cost rt2/2 |
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pi/3
sint cost |
sint rt3/2
cost 1/2 |
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pi/2
sint cost |
sint 1
cost 0 |
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Quadrant I
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pi/6 30*
pi/4 45* pi/3 60* |
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Quadrant II
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5pi/6 150*
3pi/4 135* 2pi/3 120* |
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Quadrant III
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7pi/6 210*
5pi/4 225* 4pi/3 240* |
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Quadrant IV
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11pi/6 330*
7pi/4 315* 5pi/3 300* |
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exponential log formula
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Q(t)= Q0e^kt
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tanx =
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(sinx)/(cosx) x# (pi/2)+-npi
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secx=
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1/(cosx) x# (pi/2)+-npi
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cotx=
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(cosx)/(sinx) x#npi
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cscx=
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1/(sinx) x#npi
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tan0
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0
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tan (pi/6)
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rt3/3
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tan (pi/4)
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1
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tan (pi/3)
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rt3
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tan (pi/2)
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undefined
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tan0
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0
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tan pi/6
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rt3/3
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tan pi/4
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1
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tan pi/3
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rt3
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sin (x+y)
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sinxcosy+cosxsiny
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sin (x-y)
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sinxcosy-cosxsiny
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cos(x+y)
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cosxcosy-sinxsiny
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cos(x-y)
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cosxcosy+sinxsiny
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sin 2x=
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2sinxcosx
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cos2x=
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cos^2x-sin^2x
2cos^2x-1 1-2sin^2x |
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tan 2x=
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2tanx/1-tan^2x
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sin x/2
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+- rt 1-cosx/2
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cos x/2
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+- rt 1+cosx/2
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tan x/2
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1-cos x/ sinx
sinx/1+cosx |
