Question

If vecter v1 = 3i^ + 4j^ + k and vecter v2 = i^ - j^ - k , determine the magnitude of vecter v1 + vecter v2.

Answer 1

Answer:

5

Explanation:

v1 = 3i + 4j + k

v2 = i - j - k

v1 + v2 = 3i + 4j + k + i - j - k

= 4i + 3j

|v1 + v2| = √(4² + 3²)

= √25

= 5