WILL RATE ASAP FOR CORRECT ANSWERS!!! which pairs (if any) of these vectors are

Question

WILL RATE ASAP FOR CORRECT ANSWERS!!!

which pairs (if any) of these vectors are perpendicular? Enter none or a pair or list of pairs, e.g., if is perpendicular to and , enter (a,b),(a,c)) Are parallel? Enter none or a pair or list of pairs, e.g., if is parallel to and , enter (a,b),(a,c).) Have an angles less than tt/2 between them? Enter none or a pair or list of pairs, e.g., if is at an angle less than pi/2 from b and , enter (a,b),(a,c). d) Have an angle of more than pi/2 between them? Enter none or a pair or list of pairs, e.g., if is at an angle greater than pi/2 from and , enter (a,b),(a,c).) Note: You can earn partial credit on this problem.

Explanation / Answer

a) first and tthe last are perpendicular

vector a &g are perpendicular as their dot product= 5+1-6=0

b) Aa &b Are parallel as cos (angle)=1 = 0 deg

c)a &b have angle 0 deg and b&d have angle less than pi/2.

d)b & c have angle more than pi/2.

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