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Transformari liniare

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No¸tiunea de transformare liniară<br />

Transformări <strong>liniare</strong> între spa¸tii finit dimensionale<br />

Valori ¸si vectori proprii<br />

Proprietă¸ti<br />

Propozi¸tie<br />

Proprietă¸ti. Opera¸tii<br />

Nucleul ¸si imagine<br />

Rangul ¸si defectul unei transformări<br />

Dacă f este o transformare liniară, atunci au loc<br />

1. f (0V ) = 0W<br />

2. f (−u) = −f (u), ∀u ∈ V .<br />

Demonstra¸tie. 1. f (0V ) = f (0 · 0V ) = 0 · f (0V ) = 0W .<br />

2. Din u + (−u) = 0V deducem f (u) + f (−u) = 0W , adică<br />

f (−u) = −f (u).<br />

Transformări <strong>liniare</strong>

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