Please answer both 6 & 7

Question 1 (30 points) Consider the following three relations: Employee (E) salary 150,000 150,000 100,000 100,000 80,000 sex 101 102 103 104 105 James Patricia Work On (W) 101 101 102 102 102 103 104 2015 2016 2015 2016 2017 2017 2018 Project (P) DataBase DataMin BigData mgr eid 102 103 104 30,000,000 20,000,000 0,000,000 2 The key attributes are underlined. Work On.eid refers to Employee.eid, Work On.pid refers to Project pid, and Project.mgr eid refers to Employee.eid. Let E be Employee, let W be Work_On, and let P be Project. Show the Result of the following Relatonal Algebra (RA) expression TT eid ename E) XTT eid, pid W x TT pid, pname O pname DataMining P) EWP 7) ( M ( 1-) meid, 2 m-ename) . TT eid, ename E