Matrice inverse Flashcards

1
Q

La matrice identité est…
et elle est …

A

i
tjrs carré

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2
Q

i3 est…

A

la matrice identité de dimension 3x3

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3
Q

Théorème A nxn * i n =
et i n * A nxn =

A

= A
= A

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4
Q

Définition: Soit A et B deux matrices carrées de même ordre
Si AB = i et BA = i alors

A
  • B est la matrice inverse de A
  • A est la matrice inverse de B
    A^-1 = B
    B^-1 = A
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5
Q
A
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