CREATE TABLE table_79910 ("D 41 \\u221a" TEXT, "D 42 \\u221a" TEXT, "D 43 \\u221a" TEXT, "D 44 O" TEXT, "D 45 O" TEXT, "D 46 O" TEXT, "D 47 O" TEXT, "D 48 O" TEXT)

Name the D 47 O with D 48 O of r 9
SELECT "D 47 O" FROM table_79910 WHERE "D 48 O" = 'r 9'
SELECT "D 47 O" FROM "table_79910" WHERE "D 48 O" = 'r 9'