Question 9
Binary OperationsIf a binary operation * is defined as x * y = x2 + y2 − √(xy). Evaluate 15 * (3 * 3)
- A.435
- B.420
- C.425
- D.520
Show the answer and explanation
Answer: A (435)
Explanation
3 * 3 = 9 + 9 − 3 = 15; 15 * 15 = 225 + 225 − 15 = 435.