Question

find domain and range of 1/root x-9​

Answer 1

Answer:

ANSWER

y=x−1

x−1>0

⇒x>1

∴x∈[1,∞]

y=x−1

⇒y≥0

∴y∈[0,∞)

∴ Range ⇒[0,∞)

Domain ⇒[1,∞).

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