4. Complete each statement. (10 marks) a) Write the vector (1. -1. 4) using unit vector notation . i b) Write 21 + 5k in component form _. c) If vectors Band I) are opposite vectors and '3' = 2 what is the b m ix= e) The addition of two vectors always results in another f) The multiplication of a vector by a negative scalar will result in a vector in the direction. 9) The addition of two opposite vectors results in the vector. h) If the dot product of two vectors equals zero then the vectors are i) Write components of a vector collinear with (4, - 7) j) Given '0' = 5 and lbl _ 6 and the angle between vectors and is 35. Find the magnitude of a X b