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Distance Formula
d=

sphere of radius r and center (h,j,k)


standard basis vectors
 i= <1,0,0>
 j= <0,1,0>
 k= <0,0,1>

unit vector
a vector of length 1


When are two vectors parallel to each other?
When they are scalar multiples

When are two vectors orthoganal or perpendicular to each other?
When their dot products is zero

what is the equations of


what does the cross product help to find?
the area

what is the product of a cross product?
a vector perpendicular to both a and b

Dot product produces a?
scalar

Cross product produces a?
vector



Two things needed to produce an equation of a line

Two things needed to produce a plane
 point
 perpendicular vector




Hyperboloid on two sheets



Define space curve
any curve in space


