Question

90 points

please tell fast and apt ans
don't post rubbish
and give detailed solution ​

Answer 1

Answer:

I AM SORRY I DON'T KNOW

Explanation:

Answer 2

Answer:

Explanation:

OA VECTOR= (1-0) i ^ + (2-0) j^

                    = i^+ 2 j^

OB VECTOR=(3-1) i^+(1-0) j^

                    = 2 i^+j^

AB VECTOR=(3-1) i^+(1-2)j^

                    =2 i^-j^

HOPE IT HELPS.