kasr ratsional sonlarni ayniy almashtirish
![Mavzu: Kasr - ratsional
ifodalarni ayniy
almashtirish](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_1.png)
![Arifmetik amallar belgilari bilan
birlashtirilgan algebraik kasrlardan tuzilgan
ifoda kasr-ratsional ifoda deyiladi.
∙ ( - )
a ≠0, b≠0 Kasr-ratsional ifoda](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_2.png)
![Kasr-ratsional ifoda
∙ ( - ) =
∙
= = ∙
=](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_3.png)
![Kasr-ratsional ifoda
∙ ( - )
∙
2) ∙ - = ab
( a − b ) ²
= =](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_4.png)
![№ 8 7(1). Amallarni bajaring:
=2 3
(
??????
2
−
??????
3
) ∙
1
??????
2
= ¿
=
??????
?????? ??????
=
∙
1
??????
2
= ¿](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_5.png)
![): (
1) = =
= ∙ 2)
b a
a b
??????
2
+ ??????
2
− 2 ????????????
?????? ??????
¿
?????? − ??????
?????? ??????
3 )
= -b = -b
a b](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_6.png)
![= ∙ = m + 5№ 90(4).
1) = =
¿
m
2
+ 24 − 4 m − 20
( m − 5 ) ( m + 5 )
¿
m
2
− 4 m + 4
( m − 5 ) ( m + 5 ) =
¿
( m − 2 )
2
m
2
− 25
2)](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_7.png)
![Hovuz birinchi quvur orqali a soatda, ikkinchi kuni
b soatda to‘ladi. Agar bir vaqtda ikkala quvur ochib
qo‘yilsa, hovuz necha soatda to‘ladi.
b
a
V; t-?1- q bir soatda
2- q bir soatda +
+ ∙ t=V /:v
+ ∙ t=1
t =1:( + )= 1 : t =](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_8.png)
![Darslikda keltirilgan
88 – 90 - topshiriqlarni bajarish
(33-34 betlar) .
Mustaqil bajarish uchun topshiriqlar:](/data/documents/917a2dbc-cafd-41fa-9928-4d2f6a37b453/page_9.png)
Mavzu: Kasr - ratsional ifodalarni ayniy almashtirish
Arifmetik amallar belgilari bilan birlashtirilgan algebraik kasrlardan tuzilgan ifoda kasr-ratsional ifoda deyiladi. ∙ ( - ) a ≠0, b≠0 Kasr-ratsional ifoda
Kasr-ratsional ifoda ∙ ( - ) = ∙ = = ∙ =
Kasr-ratsional ifoda ∙ ( - ) ∙ 2) ∙ - = ab ( a − b ) ² = =
№ 8 7(1). Amallarni bajaring: =2 3 ( ?????? 2 − ?????? 3 ) ∙ 1 ?????? 2 = ¿ = ?????? ?????? ?????? = ∙ 1 ?????? 2 = ¿