Question

If a vector = 7i-8j and b= i+2j then |a+b|

Answer 1

Answer:

10

Explanation:

|a+b|=(7+1)i^(cap)+(-8+2)j^(cap)

a+b=8i-6j

|a+b|=$\sqrt{8^2+6^2}$

|a+b|=10

mark as brainliest if ur satisfied with my answer

Answer 2

Answer:

follow me if u like my answer