Scalar/Dot Product Flashcards by Sophie Stockton

Q

What is a•b equal to?

A

|a||b|cos°

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Q

if a=(a1,a2,a3) and b=(b1,b2,b3) then..

A

a•b=a1b1+a2b2+a3b3

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Q

what is the angle between two lines equal to?

A

the angle between two vectors is equal to the angle between direction vectors

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