Bài 16: CƠ NĂNG
!"#$% & '(#$%'")
!"#$%*'+,-"./0
1 !"#$%
23,456
7")0809 & :;8')0$<
=>?9*@ 1 3A')0B0C
D6.9E.
0E"
& 0E"0
0
1 00E"
F'
G
H
,0
H
I
JK
G
)
G
7")0
H
09 L
I
9"0#').
H
0
G
M
& =
I
,0)
N
$
H
")6
N
.K
H
0K
H
,6
G
".
H
0
G
1 =
I
,9"
H
;
G
0
H
').
H
0
G
O!".K
H
H
'6"$
I
')?K
G
0K
H
).2PQ
)
G
).2PQ )
G
JK0K
N
"
& )
G
"
N
.0"2PQ 1 )
G
"
N
.0"FPQ
R'
G
'$6
I
6
H
,04'$6
I
6
H
I
6
N
G
H
9
I
L"
H
6
N
I
.K
H
0K
H
,6
G
".
H
0
G
& L"
H
6
N
G
0K
H
J
G
,6
G
".
H
0
G
L"
H
)
N
0K
H
I
.K
H
H
K
G
4
I
.K
H
0K
H
I
G
I
JK
G
"#$6
H
1 L"
H
)
N
0K
H
6
G
"
G
H
K
G
J
G
STK
H
")9"#$
I
0U
N
.K
H
.
H
N
")?K
G
6
N
"
H
'U
G
I
I
9"
G
0K
H
#6
G
G
H
"0U
N
.
H
N
")
&
H
".
H
N
")
V"$
W
.
H
N
")
1
H
"0U
N
.
H
N
")
I
.
H
N
")
X'0K
H
N
#
G
0K
I
K
I
4#
G
U
N
0K
H
'.K
H
6
I
""
G
'K
I
"$
I
#
H
" 6
N
#
G
0
W
)
N
G
I
H
#$6
H
I
K6
H
& )
G
Y")
H
ZK
H
[T.\")0$%9]0"^3"#<#$%.\")
3Z5#8#$%
P&C00"#.0",_ Z",_
<#$%Z5#8#$%
T0EE84`"#)55 ZEE
80,`<8#$%
2'3,4JK50
7")0809
& B00$%a0"')./E
=>?9*@0/')./0JK50.b5
1 L>9"0#')./0c.
D''$<%,0^50^5
TdK0^')0b0a
& dK08')0$<.
&a_'K"^$%EB8#$
1 B9E08')9"e
F7$-"05
T/0'6"?^')
& T")0$%@.
T")9"0#').f")
1 =>?0$%@"/
OT50DPPPQ56#OPPPQ +
05
Bài Tập:
T.396.89c060"g5K,0"gh 'D2
"4.30$0$%2PP#+$-#)X. L"g,.396.
XPi +K,.3
2. T.396.89c060"g5K,0"ghjJk
'"4.30$0$%2PPP#+$-#)2. L"g,
.396.XPi +<"".396.J"#$%$-5"')
J"#$%'")$-#PPPJl.
D
3. Ze0$./#),KK4m./f")"R.
`"m.#nJ@ojORPPY
+K980pn"g
& +<""980$#),KK9"K,
&8#RPPq
F T0r.3J@."?;9c#n2OPPY80B &"K
,#."g0r.3#2OJq4+.?;080$%
O T380-"K,XPPq4'R"<.3050pn
"g0$%.K9c9")