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## Homework Statement

Arrive at the orthogonality relation [itex]{T^{\mu}}_{\alpha}{T^{\alpha}}_{\nu} = K{\delta^{\mu}}_{\nu}[/itex]

and determine K.

## Homework Equations

[itex] T_{ij}=T_ji} [/itex]

## The Attempt at a Solution

[itex] {T^{\mu}}_{\alpha}{T^{\alpha}}_{\nu} = {T^{\mu}}_0{T^0}_{\nu}+ {T^{\mu}}_i{T^i}_{\nu}[/itex]

I am not sure how to continue from here, in which direction I should go...

Thanks!

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