2 years ago

State the domain of each function using interval notation pls show ur work!!

Mathematics

1 answer:

Serggg [28]2 years ago

5 0

Answer:

(-∞ , -6] ∪ [6 , +∞)

Step-by-step explanation:

<u>Let D be the domain of f </u>.

D = {x ∈ IR ; where x² - 36 ≥ 0}

x² - 36 ≥ 0

⇔ x² ≥ 36

⇔ x² ≥ 6²

⇔ √(x²) ≥ √(6²)

⇔ |x| ≥ 6

⇔ x ∈ (-∞ , -6] ∪ [6 , +∞)

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