Tableau Online does not currently support trusted authentication (Tableau Server and Tableau Online--Which is Right for You?).
If this is something you would like to see, I would suggest posting it to Ideas.
Can you help us how to implement the embedded views using trusted authentication in tableau server.
Please help us the procedure to how to implement.
It cannot be done.
Well, at the time of my post -- 1 year ago -- it wasn't possible as said by Justin Chen, the second comment above mine. However, that's a long time in computer years so maybe something has changed.
Nothing has changed in this regard - Tableau Online just wasn't built to support Trusted Authentication as an SSO mechanism.
Consider using Site-specific SAML if you want SSO.