If a $ b = 2, where a $ b = a2 - b, what is the value of a and b?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 2, 2.
If a $ b = 2, where a $ b = a2 - b,
Option 1) 2, 2
2 = 22 - 2
2 = 4 - 2 = 2
Thus, the value of a and b = 2, 2