Question

If A=7i-8j and B=i+2j then |A+B|=?

Answer 1

We know A=7i-8j and B=i+2j

So,A+B=7i-8j+i+2j

We add now like terms

So,8i-6j

Answer 2

Answer:

"8i-6j"

EXPLANATION

A=7i-8j

B=i+2j

Simply add A and B

A+B=7i-8j+i+2j

So,8i-6j