A:Answer You can cast using several different means. You don't have to have a Chromecast. If you have a late model Samsung Smart TV, you have options right there. Another, if you want to cast from YouTube, you can use the casting feature within the YouTube app and cast directly to a Roku streaming device that has the YouTube app also installed.
Do a google search with the words -- video casting using android -- you will see several detailed answers. Most will cost money to do but not all of them. The Tab 3 Lite does NOT have any cable connections such as a mini HDMI output. It has the mini USB power receptacle, one USB slot and one SD memory card slot.