1
Q
T
A
r’/|r’|
2
Q
N
A
T’/|T’|
3
Q
B
A
T*N (Dot Product)
4
Q
sin(x)/x
A
1
5
Q
Parametric EQ
A
r(t)=(1-t)r0+tr1
6
Q
parametric EQ of vector line
A
horizontal + vertical*t
x,y,z
7
Q
a/(1+x^2)
A
derivative of tan^-1
8
Q
a/(1+x^4)
A
derivative of ln
9
Q
L= |r’(t)|dt
A
Length of the curve
10
Q
S=S(t)=(int)0->t |r’(u)|du
A
Reparametrize Curve
Calc 3
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