Can I install a game on my Xbox one and then sell the disc and still be able to play the game?

Yes, you can install a game on your Xbox One and then sell the disc while still being able to play the game, but only if you have a digital license for it. If you purchase the game digitally or if you have previously redeemed a code for it, you can play it without the disc. However, if you only have the disc version and sell the disc, you will lose access to the game since the disc is required for verification.