Question

If |A×B|=√3A.B then find |A+B|​

Answer 1

Answer:

If |A×B| =_/3A.B

Therefore, squaring on both sides

A×B=3.A²×B²

1=3A.B

A=1/3B

&B=1/3A

|A+B|=|1/3B+1/3A

=|3A+3B/3A×3B|

=3(A+B) /9AB

A+B /3AB