Which plane is the vector [3, 2, -1] parallel to? *

1 point

a) None of below

b) xy plane

c) xz plane

d) yz plane

How many non-zero, non-colinear, position vectors are orthogonal (perpendicular) to this vector? r = [1,3,5] *

1 point

a) None

b) 1

c) 2

d) 3

e) infinite

How many non-zero, non-colinear, position vectors are orthogonal to all three of these vectors?r = [3,0,-5], s =[-2,0,4], t = [4,0,-4] *

1 point

a) None

b) 1

c) 2

d) 3

e) infinite

How many non-zero, non-colinear, position vectors are orthogonal to all three of these vectors? r = [3,1,-5], s =[-2,0,4], t = [4,-2,-4] *

1 point

a) None

b) 1

c) 2

d) 3

e) infinite