Question

if vector a = 2i - j + k and vector b = 2 i + j + 5 k then vector in the direction of a vector + b vector with magnitude 7 is ? Give answer with full solution
a) 6k
b) 3k
c) 7k
d) 14k

Answer 1

Step-by-step explanation:

vector a + vector b =4i+6k

• unit vector in its direction would be 4i+6k/root 52
• the vector with magnitude 7 would be 7(4i+6k)/root 52

Answer 2

Step-by-step explanation:

check it bro if that helps