Page 134 - Grade 10 C.Math

PsfO 12
;dLs/0f (Equations)

12.0 k'g/fjnf]sg (Review)
Curriculum Development Centre
lgDg lnlvt k|Zgx¿df 5nkmn u/L ;dfwfg vf]Hg'xf];\ M
- x + y = 5 / x - y = 1 n] s'g laGb'df Ps cfk;df e]6\5g\ xf]nf < kTtf nufpg'xf];\ .

– ;Demgfsf] xfnsf] pd]/ 20 jif{ 5 . pgsf] 4 jif{ klxn]sf] pd]/ / 2 jif{kl5sf] pd]/
hf]8\bf slt x'G5 <

– ju{ ;dLs/0f x – 4 = 0 sf d"nx¿ s] s] x'g\ <
2
– b'O{ cf]6f o'ukt\ /]vLo ;dLs/0fx¿nfO{ s'g s'g ljlwåf/f xn ug{ ;lsG5 <
2
– px + qx + r = 0 Ps ju{ ;dLs/0f x'g clgjfo{ ;t{ s] xf] <

12.1 o'ukt\ /]vLo ;dLs/0f ;DaGwL zflAbs ;d:of (Verbal problems leading to
simultaneous equa on)

b'O{ rno'St ;dLs/0fsf] k|of]u u/L Jofjxfl/s ;d:ofx¿ xn ug{ ;lsG5 . lbOPsf] jfSonfO{
ul0ftLo :j¿ksf ¿kdf ;dLs/0f agfO{ ljleGg tl/sfn] xn ug{ ;lsG5 . s]xL ;d:ofx¿sf]
;dfwfg tn pbfx/0fx¿df lbOPsf] 5 . oL ;d:ofx¿ xn ubf{ ;d:of ;dfwfgsf lgDg
lnlvt r/0fx¿ ckgfpg'kg]{ x'G5 M

1. lbOPsf] k|Zgdf c1ft /flznfO{ x, y, z ....... cflbn] hgfpg]

2. ;fwf/0f jfSonfO{ ;dLs/0fdf abNg]
3. k|fKt ;dLs/0fnfO{ x6fpg] ljlw, k|lt:yfkg ljlw cflbsf dfWodaf6 xn ug]{

pbfx/0f 1
olb Pp6f lqe'hdf ePsf b'O{ cf]6f Go"gsf]0fx¿sf] of]ukmn 75° / km/s 15° 5 eg] tL
sf]0fx¿sf] dfg kTtf nufpg'xf];\ .

;dfwfg

oxfF tL b'O{ cf]6f Go"gsf]0fx¿ x / y dfgf}F

k|Zgcg';f/ M x + y = 75° ...... (i)
x – y = 15° ......... (ii)

131 ul0ft, sIff – 10