Answer:
A) {-2, 2, 3, 4}
Step-by-step explanation:
Domain is a list of x values. So domain {-2, 2, 3, 4}
Given the expression
Simplify
Given that x = 1+√2
Substitute
the answer is B
b
The answer is C
12+8=20
Then you subtract 20 by 5