Lượng Giác.Một Số Bài Cần Giải Ngay - Diendan.hocmai.pdf
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Transcript of Lượng Giác.Một Số Bài Cần Giải Ngay - Diendan.hocmai.pdf
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4/4/2015 LngGic.MtSBiCnGiiNgayDiendan.hocmai.vnHcthychngtyhcbn!
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Hocmai.vn Tintc Trangchdinn ngk Bivittrongngy Tmkim Hngdn
iuchnh Tmtrongbivit Xpbi
#1
Diendan.hocmai.vnHcthychngtyhcbn!TonTonlp10Cung,gcvcngthcLGLngGic.MtSBiCnGiiNgay
Tmkim
29072009
phamvanquy93ThnhvinThnhvincalp
Thamgia:15072009Bivit:31cmn:60ccmn4ln
LngGic.MtSBiCnGiiNgay
ChotamgicABCCM:
6.sinA/2.sinB/2.sinC/2 1/8
7.cosA.cosB.cosC 1/8
8.cossA/2.cosB/2.cosC/2 3\sqtr[2]{3}/8
9.sin^2A+sin^2B+sin^2C 9/4
10.TamgicABCnhn:tn+tanB+tanC 3cn3
11.tanA/2+tanB/2+tanC/2 cn3
12.tanA/2.tanB/2.tanC/2 1/3cn3
13.cotA+cotB+cotC cn3
14.cotA/2+cotB/2+cotC/2 3cn3
15.tan^2A/2+tan^2B/2+tan^2C/2 1
Bigingminph
thiminph
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4/4/2015 LngGic.MtSBiCnGiiNgayDiendan.hocmai.vnHcthychngtyhcbn!
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#2
#3
#4
Thayinidungbi:kachia_17,29072009lc20:00.Ldo:latexln1kachia
29072009
theskyonlineThnhvinThnhvincalp
Thamgia:08062009Bivit:13cmn:8ccmn0ln
10.cuphipdngcngthc:tana+tanb+tanc=tana.tanb.tanc
vytac/m:
dotanlnhn0nntapdngcsi:cho3s:
(tana+tanb+tanc)>=3.canbac3(tana.tanb.tanc)=3.canbac3(tana+tanb+tanc)
b2:lpphnglntac:(tana+tanb+tanc)3>=27(tana+tanb+tanc)=>chia2vlok^^!
note:binocdngtngtm3snhthm>=3cn3thclmtngt
07082009
n_k_lThnhvinTph
Thamgia:09072009Bivit:238cmn:10ccmn47ln
Trch:
Nguynvnbiphamvanquy93ChotamgicABCCM:
tac
v
pcm
__________________Sngtrongisngcncmttmlng.
lmg,embitkhng?gicuni...
Thayinidungbi:n_k_l,10082009lc09:23.
Cmtthnhvincmnn_k_lvbivitny:
buianchoi
07082009
n_k_lThnhvinTph
Thamgia:09072009Bivit:238cmn:10ccmn47ln
Trch:
n ng
Mudimv0.8 Tt VNI Telex Viqr Tnghp Chnht Bdukiumi[Bt/Tt(F9)n/Hin(F8)]
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4/4/2015 LngGic.MtSBiCnGiiNgayDiendan.hocmai.vnHcthychngtyhcbn!
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#5
#6
Nguynvnbiphamvanquy93ChotamgicABCCM:
xt
pcm
__________________Sngtrongisngcncmttmlng.
lmg,embitkhng?gicuni...
Thayinidungbi:n_k_l,09082009lc16:11.
08082009
n_k_lThnhvinTph
Thamgia:09072009Bivit:238cmn:10ccmn47ln
Trch:
Nguynvnbiphamvanquy93ChotamgicABCCM:
tac:
talic:
__________________Sngtrongisngcncmttmlng.
lmg,embitkhng?gicuni...
Thayinidungbi:n_k_l,09082009lc16:21.
08082009
n_k_lThnhvinTph
Thamgia:09072009Bivit:238cmn:10ccmn47ln
Khngthankshiph!
6/
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4/4/2015 LngGic.MtSBiCnGiiNgayDiendan.hocmai.vnHcthychngtyhcbn!
http://diendan.hocmai.vn/showthread.php?t=59040 4/6
#7
#8
PCM
Thayinidungbi:n_k_l,08082009lc16:21.
10082009
n_k_lThnhvinTph
Thamgia:09072009Bivit:238cmn:10ccmn47ln
Thankshaykhng?...Tubn!
Trch:
Nguynvnbiphamvanquy93
7.cosA.cosB.cosC 1/8
Tac:
(pcm)__________________
Sngtrongisngcncmttmlng.lmg,embitkhng?
gicuni...
12082009
silvery21MEMVIPBth
Thamgia:15052009nt:__[FR]__^_^!!Bivit:2,870imhctp:3cmn:2,189ccmn2,183ln
tnghnnbini1vthi,ngdngppchuynvithingtahimin,maxthbtlmxao?__________________
**************Cchgtingvitcdu
TiliutonTHPT
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#9
#10
20032011
gainhangheo1995ThnhvinThnhvincalp
Thamgia:01122010Bivit:9cmn:0ccmn0ln
chang?hieujika?olaigoilaA.daubai`dauco'ranhuthe'
20032011
maxqnMEMVIPVnskhiunanBth
Thamgia:16042010nt:KTXHQuctHQGHCMBivit:2,395imhctp:777cmn:2,174ccmn2,002ln
Trch:
Nguynvnbigainhangheo1995chang?hieujika?olaigoilaA.daubai`dauco'ranhuthe'
Lsaohbn?Algctrongtamgicm.__________________
OFF
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Saigon, HERE WE COME!!!
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