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Matematika” fani ishchi oquv dastur
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| bet | 41/69 | | Sana | 15.12.2023 | | Hajmi | 18,04 Mb. | | #119823 |
Bog'liq 1-kurs Matematika to\'plam tayyor1-Misol. proporsiyaning noma’lum hadini toping.
Yechish: aralash sonlarni noto’g’ri kasrlarga aylantirib olamiz: .
Ichki hadlar ko’paytmasini tashqi hadlari ko’paytmasiga tenglashtiramiz.
Ikkala tomonini ga bo’lib x ni topamiz:
2-Misol. 0,25:1,5=0,75:x tenglamani eching.
Yechish: Berilgan tenglama proporsiya bo’lib, uning noma’lum hadi chetki had bo’lgani uchun, bu hadni topish uchun ichki hadlar ko`paytmasini ma`lum tashqi hadga bo`lamiz:
3-Misol. Tenglamani yechigh.
Yechish: Berilgan tenglama proporsiya ko`rinishida bo`lgani uchun chetki va ichki hadlarni ko`paytmasini bir-biriga tenglab olamiz:
Ilova №5
Tarqatma materiallar
1-topshiriq
Misol-1. Tenglamani yeching.
-2x=10
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18x=-9
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10х=0;
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15x=-15;
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Misol-2. Tenglamani yeching.
0,3x=6
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1,3x=-1,69;
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0,7x=49;
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10x=0,5
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2-topshiriq
Misol-3.Tenglamani yeching.
a) 5х+3(3x+7)=35; d) 8х-(7х+8)=9;
b) 8у-9-4у+5=12у-4-5у; e) 4+8у+8=2у-10-7у+9.
3-topshiriq
Misol-4.Tenglamani yeching.
a) 5(х-3)- 2(x-7)+7(2х+6)=7; d) 11(у-4)+10(5-Зу)-3(4-Зу)=-6;
b) 5(8z-1)-7(4z+1)+8(7-4z)=9; e) 10(Зх-2)-3(5x+2)+5(11-4х)=25.
4-topshiriq
Misol-5.Tenglamani yeching.
a) b) d) e)
5-topshiriq
Misol-6.Tenglamani yeching.
a) b) =
6-topshiriq
Misol-7.Tenglamani yeching.
a) =2 b) =
7-topshiriq
Misol -8.Tenglama ildizlariga ega emasligini ko’rsatining
28-20x=2x+25-16x-12-6x;
8-topshiriq
Misol-9.Tenglama ildizlariga ega emasligini ko’rsatining
25x-17+4x-5-13x+14+34x;
b) =2 e) =
10-topshiriq
Misol-10.Tenglama ildizlariga ega emasligini ko’rsatining
a) = ; b)
b) =2 e) =
Misol-11.x ning istagan qiymati tenglamaning ildizi bo’la olishini ko’rsating.
a) 8(1,3+0,25)-6,6x=3,8x+2; b) 9x+4-5x=8+7x-9-3x+5;
b) =2 e) =
Misol-12.x ning istagan qiymati tenglamaning ildizi bo’la olishini ko’rsating .
a) 10-4x+3=9x-2-6x+9-7x+6; b) 6(1,2x-0,5)-1,3x=5,9x-3;
Ilova №6
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