VIETMATHS.NET
Trang 2VIETMATHS.NET
Trang 61yx
yxy
x
yxy
xf
f Rf
n n
n
xx
l
n n n
n x C n N xx
x
n
n
n yxy
x
d x xn y yn l
dldlC
C C x Ax Ax t t xt x C t
AC
YXf
A
f A f A A X
VIETMATHS.NET
Trang 62E n
k k
u
x k n
n
E En p x p x p x p x Enx
Trang 63yxy
x
yxy
xf
n
n n
nxni
Rxxxx
p i
i yxy
xd
n i
i
i yxy
nnAxifn
xifx
f
n
n
Nn
n k
A
n k nf
Trang 64n n
n n
xn
n n
Trang 65VVfnfimf
Trang 66n n
xn
xnx
nx
x x x xn l l
Rl
n n
Trang 67n
xn
y
yx
yxf
f
nx
xnx
nx
n x yy
n n n
xx
f x xn l
l f
E
CE
Trang 68n V V
f
myxyxyx
a
p
x
x x Kp
a
ap
VIETMATHS.NET
Trang 69n n n x
x
yx
yxy
x
xyxf
f
f
nxe
n
xy
xf
x
n
n n
n R xx
l
ne
A n
n
n
n yxy
x
d d x y n xn yn x xn y yn
l ll
x
x x x l
n
n xx
n n
x
x x xn
n
AX
A n X An
VIETMATHS.NET
Trang 71yx
fxy fü x y
xy
f fyx
nxx
n
n n
n
n n
xnn
XXfx
xfXxA
A d f x x x x X
n
n An
n
n
f f d f d
A n n
n An
Trang 72x
n
m
VVV
V
VIETMATHS.NET
Trang 73x
l
n n n
n x C n N xx
x
n n
x x x xn ll
n n
n
x
x x x l
VIETMATHS.NET
Trang 74n n n n
x x x r
VIETMATHS.NET
Trang 75VIETMATHS.NET