If you want to learn the mac addresses of the nic teaming member adapters in your Hyper-V Failover Cluster environment, you can use the commands below.
foreach ($i in ((Get-NetLbfoTeam).name))
Write-Host "nTeam Name – "$in"Team Members: "
Get-NetAdapter (Get-NetLbfoTeamMember -Team $i).Name | Format-Table
Have a nice day!