Precalc Finals 1
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Last updated 10:28 PM on 12/18/22
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13 Terms
1
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Compound Interest (not e)
P(1+r/n)^nt
2
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Compound Interest (e)
Pe^rt
3
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Exponential Grown/Decay
No(e)^rt
4
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Arc length
s=rtheta
5
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Area of a sector
1/2r^2(theta)
6
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Linear Velocity
v=s/t=rw
7
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Angular velocity
theta/t
8
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Law of Sines
sinA/a=sinB/b=sinC/c
9
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Law of Cosines
a^2=b^2+c^2-2bc(cosA)
10
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Area of a triangle
1/2absinC
11
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Pythagorean Identities
sin^2+cos^2=1
12
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cofunctions
sin(pi/2-x)=cosx
13
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double angle formulas
sin(2x)=2sincosx
cos(2x)=cos^2-sin^2
tan(2x)=2tanx/(1-tan^2x)
cos(2x)=cos^2-sin^2
tan(2x)=2tanx/(1-tan^2x)