Question

f(x) = 1/√x^2 -64 find it ​

Answer 1

Answer:

x^2 - 64 ≥ 0

|x| ≥ 8

x ≥ 8 or x ≤ -8

domain: (-∞, -8] U [8, +∞)

making y using domain:

x ≥ 8 or x ≤ -8

|x| ≥ 8

x^2 - 64 ≥ 0

√(x^2 - 64) ≥ 0

y ≥ 0