- #1

Tony Stark

- 51

- 2

## Homework Statement

How does the scalar product of displacement four vector with itself give the square of the distance between them?

## Homework Equations

**(Δs)**

^{2}= Δx.Δx ( s∈ distance, x∈ displacement four vector)

or how

ds

^{2}=η

_{αβ}dx

^{α}dx

^{β}

## The Attempt at a Solution

Clearly I am completely new to the subject, thus I have no idea about it.