Prove that if the vector A and B are parallel to each other than A.B=A

1.	Prove that if the vector A and B are parallel to each other than A.B=AB
Answer» Answer: A.B is the dot product of A&B, IMPORTANT THING to NOTE is that dot product is the projection of vector A on B or vice versa. Also the formula of dot product is, \|A.B\| = \|A\| \|B\| cos(theta), where theta is the ANGLE between VECTORS A & B. Using the formula, A.B = AB, for theta = 0 degrees. Explanation:

Prove that if the vector A and B are parallel to each other than A.B=AB

Answer»

Answer:

A.B is the dot product of A&B,

IMPORTANT THING to NOTE is that dot product is the projection of

vector A on B or vice versa.

Also the formula of dot product is,

|A.B| = |A| |B| cos(theta),

where theta is the ANGLE between VECTORS A & B.

Using the formula,

A.B = AB,

for theta = 0 degrees.

Explanation:

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Prove that if the vector A and B are parallel to each other than A.B=AB

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