3. [16.25 Points] WANEFMAC7 8.1.029. MY NOTE Suppose two ce (one red, one green) are relied. Con er the Following events. A the red die shows 3; at least one cf the numbers is 3,- and D he numbers do not add to 9. Express the van event in symbols. HINT [See Example 5.] At least one uflhe numbers is 3, erthe numbers add up to 4. O c n 3 O c U B O C'U B O c U B' O c'n a How many elements does it contain? E