- #1

Raghav Gupta

- 1,011

- 76

## Homework Statement

If a,b,c are three -zero vectors such that each one of them are perpendicular to the sum of the other two vectors, then the value of | a, b, c|

^{2}is

|a|

^{2}+ |b|

^{2}+ |c|

^{2}

|a| + |b| + |c|

2(|a|

^{2}+ |b|

^{2}+ |c|

^{2})

½(|a|

^{2}+ |b|

^{2}+ |c|

^{2})

## Homework Equations

a.b = ab cosθ

|axb|= ab sinθ

## The Attempt at a Solution

First I am not understanding the notation in question of which we have to find value.

It does not makes sense of having three zero vectors.