Yes.
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
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]
yes it is
The ray opposite from ray BA is ray AB. These rays form a straight line.
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
Line BA
Yes, while naming a line segment, as long as the two points are on the line, it does not matter what order they are in or which points they are. well their not
Yes.
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.
Ab and Ba are the same line because there are no endpoints to a line. Therefore, you can reverse the order of the letters. So, Cd and Dc are not the same ray because the first letter is the endpoint. So on ray Cd, point C is the endpoint and d is a point on the line coming from the endpoint. On ray Dc, D is the endpoint.
yes
If these are vectors, then ba = - ab
Yes, provided it is the ray. If AB is a vector then the answer is no.
The GCF is ab