CREATE TABLE table_15343 ("Year" FLOAT, "Entrant" TEXT, "Chassis" TEXT, "Engine" TEXT, "Points" FLOAT)

How many points did the Cosworth v8 engine get in 1972?
SELECT "Points" FROM table_15343 WHERE "Year" = '1972' AND "Engine" = 'cosworth v8'
SELECT "Points" FROM "table_15343" WHERE "Engine" = 'cosworth v8' AND "Year" = '1972'