No.
yes
Yes, provided it is the ray. If AB is a vector then the answer is no.
[(aa + bb) + (ab+ba)(aa+bb)*(ab+ba)]*[a + (ab+ba)(aa+bb)*b]
no; commutative
naming a line is different from naming a ray. say for example ,if we have line AB,this is similar to line BA while ray AB is different from ray BA.
yes it is
yes
If these are vectors, then ba = - ab
Yes, provided it is the ray. If AB is a vector then the answer is no.
NB, Nb
The GCF is ab
According to the symmetric property (and common sense) line segmetn AB is congruet to line segment BA since they are the same segment, just with a different name
[(aa + bb) + (ab+ba)(aa+bb)*(ab+ba)]*[a + (ab+ba)(aa+bb)*b]
Line BA
Yes, It doesn't madder what direction you name them unless you were given specific instructions.
AB and BA.
I think its BA.