RDP /screen window to tablet

Little worried about the dual monitor through the vga connecting, but actually I even don't need to connect with HDMI cable.
Connect from PC to Android tablet pc using wifi and apps ->
Using Microsoft Remote Desktop Protocol (RDP) app in Googleplaystore

  -rdp client /http://www.xtralogic.com/rdpclient.shtml
  -idisplay /http://www.getidisplay.com/
  -air display /http://avatron.com/