1. July 15 ,2009
http://my.opera.com/vinhbinhpro
Giitch12
Phn V : ngtimcncathhms
Nhn space bar hay click chutxemccdngvtrangktip
Bintp PPS : vinhbinhpro

2. TM TT L THUYT
1.ng timcnngangcathhms :
nhngha:
ngthngy = ycgilngtimcnngangca
thhms( gittltimcnngang) y = f(x) nu :
y
y
y = f(x)
timcnngangy =y
timcnngangy = y
y = f(x)
x
O
x
0
Vd: Tmtimcnngangcathhms :
Hngdn :
ngthngy = 2ltimcnngang
http://my.opera.com/vinhbinhpro
3. TM TT L THUYT
2.ng timcnngcathhms :
nhngha :
ngthngx = xcgilngtimcnngca
thhms( gittltimcnng) y = f(x) nu :
y
y
x
0
x
timcnngx = x
y = f(x)
timcnngx = x
y = f(x)
O
x
x
Vd: Tmtimcnngcathhms :
Hngdn :
ngthngx = - 2ltimcnng
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4. TM TT L THUYT
http://my.opera.com/vinhbinhpro
3.ng timcnxincathhms :
nhngha :
ngthngy = ax+bcgilngtimcnxinca
thhms( gittltimcnxin) y = f(x) nu :
y
y
timcnxiny = ax+b
x
0
y = f(x)
M
timcnxiny = ax+b
x
N
M
N
y = f(x)
O
x
x
Vd: Chng minh timcnxincathhms :
lty = x
Hngdn :
ngthngy = xltimcnxin
5. TM TT L THUYT
* Cchtmphngtrnhngtimcnxincathhms
xcnhcchsa , btrongphngtrnhcangtimcnxin , tacth
pdngcngthcsau :
Vd: Tmtimcnxincathhms:
Hngdn:
Ta cngcktqutngtkhicho
Vyngthngy = x lphngtrnhngtimcnxincathhms
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6. Bitp
Phn V : ngtimcncathhms
7. Bitp 1
Tmccngtimcncathhmssau
Hngdn:
Vythhmsc 2 ngtimcnxin :
Bintppps:vinhbinhpro
8. Bitp 2
Tmccngtimcncathhmssau :
Hngdn:
Vythc 2 ngtimcnxin: y = 3x - 2(phi) vy = x ( tri )
Ghich : cthgiibitontrnbngphngphpphntch ( giithiusau )
9. Bitp 3
http://my.opera.com/vinhbinhpro
Tmccngtimcncathhmssau :
Hngdn: D = R
Phntch :
vi
Theo nhngha
Vyy = - 2ltimcnngang (bnphi)
Vyy = 2x - 4ltimcnxin (bntri)
10. Bitp 4
Cho hms :
nhm 2 ngtimcncathctnhautrnngthngy = 2x - 5
Hngdn :
ltimcnng
y = m -2ltimcnngang
Giaoim I cahaingtimcnl : I ( m ; m - 2 )
Theo githitI thucngthng (d) : y = 2x - 5
vinhbinhpro
11. Bitp 5
http://my.opera.com/vinhbinhpro
Tmccngtimcncathhmssau :
Hngdn:
x = 0ltimcnng
x = 2ltimcnng
y = 2ltimcnngang
x = 1ltimcnng
x = - 1ltimcnng
y = 0 ltimcnngang
12. Bintptp PPS nyvihyvngccbnhcsinhphnnornluynckhnngthcvtmrngvn . Chcccbnthnhcng.
Phngp vchnhsaxinccbn comment bndichiuhnhtrctuyn.
vinhbinhpro
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