Vectors Flashcards
1
Q
How to work out distance for 3D vectors?
A
√x^2+y^2+z^2
2
Q
How do you know if two vectors are parallel?
A
Multiples of each other
3
Q
How do you know if three points make a straight line?
A
Multiples of each other and have a point in common.
4
Q
How might you find the area of a triangle?
A
Find magnitude of all three sides then use cosine rule to find one angle then use 0.5absinc.
