22. 22
Level 2 Mathematics
tcef;(3)
*sDMoarBuDqdkif&mtajccHrsm;*sDMoarBuDqdkif&mtajccHrsm;*sDMoarBuDqdkif&mtajccHrsm;*sDMoarBuDqdkif&mtajccHrsm;*sDMoarBuDqdkif&mtajccHrsm;
3.13.13.13.13.1 trSwftrSwftrSwftrSwftrSwf
puúLay:wGif cJwHjzifh tpufi,fwpfckay:atmif axmufyg/ tqdkyg tpufi,fudk trSwftrSwftrSwftrSwftrSwf
[kac:onf/
3.23.23.23.23.2 rsOf;rsOf;rsOf;rsOf;rsOf;
vQyfppfrD;BudK;vdkif;uJhokdY 0JbufodkYvnf;aumif;? ,mbufodkYvnf;aumif;? tqkH;r½Sdajzmifhwef;
pGm wpfajzmifhwnf;oGm;aeonfh BudK;vdkif;rsKd;udk rsOf;rsOf;rsOf;rsOf;rsOf; [kac:onf/ rsOf;udktrnfay;vdkvQif
rsOf;ay:wGif trSwfESpfck ( B ESifh C ) udk,lNyD; rsOf; B C (odkYr[kwf) CB [k ac:Edkifonf/
3.33.33.33.33.3 rsOf;jywfrsOf;jywfrsOf;jywfrsOf;jywfrsOf;jywf
t0wfvSef;BudK;wef;uJhodkY ESpfbufpvkH;wdwd&d&djywfaeaomBudK;ykdif;udk rsOf;jywfrsOf;jywfrsOf;jywfrsOf;jywfrsOf;jywf [k
ac:onf/
rsOf;jywf DE (odkY) rsOf;jywf ED
avhusifhcef;(1)avhusifhcef;(1)avhusifhcef;(1)avhusifhcef;(1)avhusifhcef;(1)
1/ atmufygrsOf;wdkY trnfudk a&;yg/
(u) rsOf; AB (odkYr[kwf) rsOf; BA
(c)
(*)
tqdkygtrSwfrsKd;ukd A , B, C ........ ponfjzihf
trnfay;avh ½Sdonf/
ykHwGif trSwf A [k trnfay;xm;onf/
D E
B C
A B
M O
C D
24. 24
Level 2 Mathematics
avhusifhcef;(2)avhusifhcef;(2)avhusifhcef;(2)avhusifhcef;(2)avhusifhcef;(2)
1/ rwfrsOf;ESifha&jyifnDrsOf;rsm;ukd a½G;yg/
tajy;NydKifyGJwpfckwGif ajy;vrf;qGJxm;aom
xkH;jzLaMumif;rsm; wpfckESifhwpfckNydKifaeonf/
rsOf;AB ESifh rsOf;CD wdkYonfrnfonfhae&m
wGifrqdk tuGmta0;wlonf/
xkdrsOf;wdkYudk rsOf;NydKifrsm;rsOf;NydKifrsm;rsOf;NydKifrsm;rsOf;NydKifrsm;rsOf;NydKifrsm; [kac:onf/
tcsif;csif;jzwfaeaomrsOf;rsm;tcsif;csif;jzwfaeaomrsOf;rsm;tcsif;csif;jzwfaeaomrsOf;rsm;tcsif;csif;jzwfaeaomrsOf;rsm;tcsif;csif;jzwfaeaomrsOf;rsm;
atmufygvrf;ESpfvrf;onf wpfckESifhwpfck jzwfaeonf/
rsOf; AB ESifh XY rsOf; wdkYonf wpfckESifhwpfckjzwfaeonf/
C D
I J
A
G
H
B E
FL
K
A B
C D
B
X
YA
26. 26
Level 2 Mathematics
O
M
P
F
D
E
axmifhrSef
axmifhusOf;
A
B C
Q
P
R
axmifhus,f
axmifh
axmifhrsm;axmifhrsm;axmifhrsm;axmifhrsm;axmifhrsm;
rsOf;jywfESpfaMumif;awGUqkH&mtrSwfwGif axmifhwpfck udk jzpfay:aponf/
rsOf;jywf AB ESifh BC wdkYonf B trSwfwGif awGUqkHí
jzpfay:vmonhfaxmifhudk axmifh ABC (odkYr[kwf) axmifh
CBA [ktrnfay;Edkifonf/ (axmifhudkoauFw jzifh
azmfjyEdkifonf/)
ABC (okdYr[kwf) CBA [k a&;onf/
a&jyifnDrsOf;ESifhrwfrsOf;wdkYqHkíjzpfay:vmaom
axmifhyrmPudk axmifhrSef[kac:onf/
DEF (odkYr[kwf) FED onf axmifhrSefaxmifhrSefaxmifhrSefaxmifhrSefaxmifhrSef jzpfonf/
MOP (odkYr[kwf) POM onf axmifhrSefatmufi,f
onf/
axmifhrSefwpfckatmufi,fonfhaxmifhrSefwpfckatmufi,fonfhaxmifhrSefwpfckatmufi,fonfhaxmifhrSefwpfckatmufi,fonfhaxmifhrSefwpfckatmufi,fonfhaxmifhukd axmifhusOf;axmifhusOf;axmifhusOf;axmifhusOf;axmifhusOf;
[k ac:onf/
MOP (odkYr[kwf) POM onf axmifhusOf;jzpfonf/
PQR (odkYr[kwf) RQP onf axmifhrSefxufBuD;onf/
axmifhrSefwpfckxufBuD;axmifhrSefwpfckxufBuD;axmifhrSefwpfckxufBuD;axmifhrSefwpfckxufBuD;axmifhrSefwpfckxufBuD;aom axmifhudkaxmifhus,faxmifhus,faxmifhus,faxmifhus,faxmifhus,f
[k ac:onf/
PQR (okdY) RQP onf axmifhus,fjzpfonf/
vufawGUvkyfief;
1/ puúLacguf usifwG,fudktoHk;ûyí axmifhrsm;udkvufawGUavhvmyg/
2/ ywf0ef;usif&Sdaxmifhrsm;udkajymjyí axmifhtrsKd;tpm;cGJjyyg/
27. 27
Level 2 Mathematics
S
T
U
L
O M
Z Y
X
A
F
C
E
D
B
avhusifhcef;(4)avhusifhcef;(4)avhusifhcef;(4)avhusifhcef;(4)avhusifhcef;(4)
1/ uREfkyfwdkY aeYpOfûyvkyfaeaom tûytrlrsm;teuf rnfonhftcgwGif axmifhrsm;udk jzpfay:
oenf;/ yHkMurf;qGJyg/
2/ atmufygaxmifhrsm;udkaxmifhtrnfa&;NyD; axmifhusOf;? axmifhus,f? axmifhrSef[lícGJjyyg/
axmifh axmifhtrnf axmifhtrsKd;tpm;
(u)
(c)
(*)
(C)
(i)
33. 33
Level 2 Mathematics
puf0dkif;puf0dkif;puf0dkif;puf0dkif;puf0dkif;
uyfjym;i,fwpfckudk,lyg/ oifhawmfaomtuGmta0
jzifhtayguf(2)aygufazmufyg/ taygufrsm;udk(A) (B)
[k trnfay;yg/ xdktaygufygaom uyfjym;udk
pm&Gufay:wifyg/ (A) taygufwGif xnhfxm;aom
cJwHudk yHkaoaxmufNyD;uyfjym;udkvSnhfí (B) tayguf&Sd
cJwHjzifh trSwfpufrsm;csyg/
(B) tayguf&SdcJwHaMumifhjzpfay:vmaom trSwfpuf
wdkif;onf tayguf (A) &SdcJwHaMumifhjzpfay:aeaom
trSwfpufrS tuGmta0; tNrJwlaeonf/
uyfjym;udk rlv(A) ae&mwGifcJwHudkwpfxyfwnf;
usapyg/ (B) tayguf&SdcJwHjzifhuyfjym;udkvSnfhNyD;
trSwfpufrsm;udk wpfqufwnf; jzpfatmif a&;qGJyg/
uyfjym;ESifhcJwHrsm;udkz,fvdkufyg/ &Sdvmaom yHkudk
puf0dkif;yHkpuf0dkif;yHkpuf0dkif;yHkpuf0dkif;yHkpuf0dkif;yHk [kac:onf/
ykHaoaxmufxm;aom (A) ae&monf puf0dkif;yHk
A[dkA[dkA[dkA[dkA[dk jzpfonf/
ykHwGif A udk A[dk
AB udk tcsif;0uf[kac:onf/
AQ, AR wdkYonfvnf; tcsif;0uftcsif;0uftcsif;0uftcsif;0uftcsif;0uf jzpfonf/
ST onf A udk jzwfoGm;onf/
ST udk tcsif;tcsif;tcsif;tcsif;tcsif; [kac:onf/
trSwfwpfckrSwlnDpGmuGma0;aomwpfckrSwlnDpGmuGma0;aomwpfckrSwlnDpGmuGma0;aomwpfckrSwlnDpGmuGma0;aomwpfckrSwlnDpGmuGma0;aomtrSwfrsm;udkqufoG,fonfhrsOf;auG;udkpuf0dkif;puf0dkif;puf0dkif;puf0dkif;puf0dkif;[kac:onf/
vufawGUvkyfief;
puf0dkif;rsm;vufawGUa&;qGJyg/ rdrdpuf0dkif;ütcsif;? tcsif;0ufrsm;a&;qGJNyD; wdkif;wmyg/
ywf0ef;usifwGifawGU&wwfaompuf0dkif;yHkrsm;udkazmfjyyg/ (Oyrm - vSnf;bD;)
A
BR
Q
A
S
T
34. 34
Level 2 Mathematics
E
C
A
B
F
D
O
P
QR
S
O
L
M NP Q
R
S
A
P
Q
R
avhusifhcef;(9)avhusifhcef;(9)avhusifhcef;(9)avhusifhcef;(9)avhusifhcef;(9)
1/ yHkwGifrnfonhftrSwfonf A[dktrSwfjzpfoenf;/
rnfonhfrsOf;rsm;onfomtcsif;0ufrsOf;rsm;jzpfoenf;/
tb,faMumifhenf;/
2/ rnfonfhrsOf;rsm;onf tcsif;rsOf;jzpfoenf;/
rsOf;jywf FC onf tcsif;rsOf;jzpfygovm;/
tb,faMumifhenf;/
3/
puf0dkif;ykHtkwfckHwpfcktv,fA[dk wnfhwnfhwGif
"mwfrD;wdkifwpfck½Sdonf/ tkwfckHtem;ESifhuyfí ½G,fwl
yef;tdk; A,B,C,D av;tdk;udkcsxm;&m yef;tdk; A onf
"mwfrD;wdkifrS 3 ayuGma0;/yef;tdk; B,C, D wdkYonf
"mwfrD;wdkifrSrnfrQuGma0;rnfenf;/ tb,faMumifhenf;/
4/
RS = 0. 5 pifwDrDwm MN = 0. 8 pifwDrDwm AR = 1. 5 pifwDrDwm
PQ = 1 pifwDrDwm OL = 1. 6 pifwDrDwm PQ = 3 pifwDrDwm
ay;xm;aom puf0dkif;oHk;ck twdkif;twmrsm;udk avhvmí rnfodkY aumufcsufcsEdkifoenf;/