The dot product is the of 2 vectors. The result is a The dot product for any two vectors is defined as the product of their magnitudes multiplied by the cosine of the angle between the two vectors when the two vectors are placed in a tail-to-tail position.In R2 , if a = [a, , a2] and b = [b, , b,] then In R3 , if a = [a, , a2 , a;] and b = [b, , b2 , b;] then Proof in textbook p.379 Eg.1: If a = [3, 2] and b = 4, - 1 then; a) Determine a b $ Find the angle between a and b .Eg.2: Determine the vector projection of vector d on if d = [3, - 2] and = [1, 4] %