
Clasa a 9a Algebra
Authored by DANUT BIANCA-IULIANA
Mathematics
9th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Care este rația unei progresii aritmetice?
r=an-an-1
r=an+an-1
r=an+an+1
r=an-1+r
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Formula termenului general este......
an=a1+(n-1)*r
an=a1-(n+1) : r
n=a+1
an=0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca suma primelor n termeni ai unei progresii aritmetice
S=a1+a2+.....+an=(a1+an)-1 : 2 atunci
an= primul termen
n=ultimul termen
an=nr de termeni
n= nr de termeni
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ce este q intr o progresie aritmetica?
ratia
termenul general
domeniul
un numar necunoscut
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Fie reperul cartezian xOy
Ox= axa ordonatelor
Oy= axa absciselor
Oy=axa ordonatelor
Nu au denumire
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Care sunt modurile de definire a functiilor?
Evaluate responses using AI:
OFF
7.
DRAW QUESTION
10 mins • 1 pt
Reprezentati grafic functia f:(1,infinit) -> R ,f(x)=x-1

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