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Legi de compozitie

Authored by mihaela lupu

Mathematics

12th Grade

Used 28+ times

Legi de compozitie
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5 questions

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1.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Dacă x°y=2xy+3x+3y+3x\degree y=2xy+3x+3y+3  atunci  1°(1)1\degree\left(-1\right)  este egal cu

1

-1

0

2

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Elementul neutru al legii x*y=xy+2x+2y+2 este

-3

3

-1

1

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Soluțiile reale ecuație  xΔx=xx\Delta x=x  , unde  xΔy=xy5x5y+30x\Delta y=xy-5x-5y+30  sunt.... 


4.

MULTIPLE SELECT QUESTION

30 sec • Ungraded

O lege de compoziție este asociativă dacă

x*(y*z)=(x*y)*z

x*y=y*x

(x*y)*z=x*(y*z)

x*y=e

5.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Simetricul elementului -5 pentru legea xy=xy+4x+4y+12x\nabla y=xy+4x+4y+12  este....


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