The three vectors a, b and c with magnitude 3, 4 and 5 respectively and `a+b+c=0,`
Channel: Doubtnut
Date: 2020-05-17

The three vectors a, b and c with magnitude 3, 4 and 5 respectively and `a+b+c=0,` then the value of `a.b+b.c+c.a` is