688−689
θ m
m a
+= xy
689
m m
θ a a a a
+−= xy
−= xy
a aa
What you should learn
What you should learn
Chapter 10 Topics in Analytic Geometry
690−691
x y Ax By C
d aa aa a a a
xy −=
What you should learn
a a
What you should learn
What you should learn
h k y k p
a a a a a a
h k x h p
a a a a a a
p
a aa a a aa a
a a
P
a
What you should learn
−
a a
h k
a
b b a a a a a a a
h k
a
b b a a a a a a a
c
c a a
a a a a
a a a a
yx
What you should learn
e a a
e
e
What you should learn
What you should learn
−
a a
h k
a a a a a a
h k
a a a a a a
a c
a b c
a a a
a a a a
a a a a
a aa a a
What you should learn
−
a a a a a a
a a a a a a
− xy
e a a
e
FEyDxCyAx
a a
aa
aa
aa
−− yxyx
What you should learn
What you should learn
What you should learn
xy
−
x y
aa
x
y
FEyDxCyBxyAx
′′′′′′′′′ FyExDyCxA
θ
θ a a a
x a a a a
y a a a a
a
a aa
aa aaa aa aa aa a
What you should learn
xy
−
θ
FEyDxCyBxyAx
′′′′′′′′′ FyExDyCxA
a a
a a a a
a aa a a a
FEyDxCyBxyAx
a aa
a aa
a aa
−− yyxyx
What you should learn
f g t I
f t g t C
tfx y g t
C t
aa
x y
a
t
−tx ty ≤≤− t
What you should learn
What you should learn
−
a a
aa
a a a a
−
What you should learn
What you should learn
−
O
O
P
r a a
θ
a a
r θ
a a aa a a a a
n
θ θ
r θ − π
π
What you should learn
π
π
π
r θ
x y
a a a a a a
a a a a a a
π
a a a a a a
θ
−r
a
What you should learn
What you should learn
π
π
π
π
π
π
π
π
π
θ
−
θ π
θ−
π
π
π
θ
−
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
e a
a a
a aa a
e p
a aa a a
e p
a aa a a
e
p
a aa a a
e
p
θ+
=r
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π
π