Question

                                                       
The vector  that should be added  to 2i+4j-3k  and  3i-5j+7k  to get a unit vector along  y-axis  is

Answer 1

 2i+4j-3k  +  x vector = j
x vector = -2i -3j +3k

3i-5j+7k + x vector = j
x vector = -3i +6j -7k

Answer 2

2i+4j+x vector = j
x vector =-2i-3j+3k

3i-5j+7k+x vector
x vector = -3i+6j-7k