Kordamine 9.klass
Authored by Maris Toomik
Mathematics
9th Grade
Used 26+ times
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24 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Lahenda peast ruutvõrrand x²-8x+15=0
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Leia kaks niisugust arvu, mile summa on 13 ja korrutis 42
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Lahenda peast ruutvõrrand x²-7x-18=0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline on ruutude vahe valem?
a2 - b2 = (a-b)(a+b)
a2 - b2 = (a+b)(a-b)
a2 - b2 = (a-b)(a-b)
a2 - b2 = (a-b)2
Ruutude vahe leidmiseks ei olegi valemit.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Milline on ruutude summa valem?
a2 - b2 = (a-b)(a+b)
a2 + b2 = (a+b)(a-b)
a2 + b2 = (a-b)(a-b)
a2 + b2 = (a+b)2
Ruutude summa leidmiseks ei olegi valemit.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Milline on summa ruudu valem?
a2 + b2 = (a+b)(a+b)
a2 + b2 = (a+b)(a+b)
a2 + b2 = (a-b)(a-b)
(a+b)2 = a2 + 2ab + b2
(a+b)2 = a2 + b2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline on vahe ruudu valem?
a2 - b2 = (a+b)(a+b)
a2 - b2 = (a+b)(a+b)
(a-b)2 = a2 - 2ab - b2
(a-b)2 = a2 - 2ab + b2
(a-b)2 = a2 - b2
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