dont put another answer i will dislike it

Write both tuple and domain relational calculus expressions for the following queries. Use the database schema given below. 1. Find the full names of all registered users. 2. Find the titles of the blogs created on 01-01-2020. 3. Find the nicknames of the blog owners whose blogs were created on 01-01-2020. 4. Find the blog entries which were added on 01-01-2020 for the blog "Flying Machines