inproduct en de toepassingen daarvan Flashcards

1
Q

a^→ * b^ →

A

= ax * bx + ay * by

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2
Q

Hoek tussen vectoren

A

cos(⩗(a^→, b^→) = (a^→ * b^→)/(∣a^→∣ * ∣b^→∣)

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3
Q

∣a^→∣

A

=√(ax² + ay²) = lengte a^→

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4
Q

Hoek tussen twee lijnen

A

cos(⩗(l, m) = ∣a^→ * b^→∣/(∣a^→∣ * ∣b^→∣)
hoek ≺ 90⁰

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5
Q

Wanneer zijn a^→ en b^→ loodrecht?

A
  • als a^→, b^→ linksom of rechtsom gedraaid is
  • als a^→ * b^→=0
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