unit 6 ap precalc
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Last updated 3:21 AM on 3/23/26
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11 Terms
1
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Arc length
s=r(theta)
convert degrees to radians for theta
2
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Area of a sector of a circle
A=1/2r²(theta)
theta must be converted to radians
3
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Angular motion (w)
theta/t =radian/time
Ex: 15 cycles/10 seconds * 2pi/1 cycle
4
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Linear motion (v)
s/t = distance/time = r(theta)/t
5
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Law of sines
sin A/a= sin B/b = sin C/c
6
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SSA (for 1 solution)
a>c
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SSA (two solutions)
a<c
8
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Law of cosines
a²=b²+c²-2bc cosA
9
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Area of triangle (6.6)
s=1/2(a+b+c)
THEN
A= sqrt(s(s-a)(s-b)(s-c)
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11
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