- #1

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## Homework Statement

I have the following equation

A

^{ab}= c u

^{a}u

^{b}

Where A

^{ab}is a rank 2 tensor and u

^{a}is a vector and c is a scalar and a,b = {0,1,2,3}. I know both A

^{ab}, u

^{a}and u

_{a}

I want to find c explicitly but I don't know how to interpret or calculate

c = A

^{ab}/ ( u

^{a}u

^{b})

Does anyone know how I should proceed?

## Homework Equations

A

^{ab}= c u

^{a}u

^{b}

3. The Attempt at a Solution

3. The Attempt at a Solution

c = A

^{ab}/ ( u

^{a}u

^{b})