Vektorji? Flashcards

1
Q

Skalarni produkt (3 komponente)

A

a•b=a1b1+a2b2+a3b3

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2
Q

Dolzina vektorja a v prostoru?

A

Koren a1 na2 + a2 na2 + a3 na3

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3
Q

Kosinusni izrek?

A

a na2= b na2 + c na2 - 2bc cos♌️

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4
Q

Pokazite da sta vektorja vzporedna ali kolinearna?

A

a=m•b
Vsako komponento a enacimo z isto komponento mb

Ce so vsi m nakonc isti sta vektorja kolinearna

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