The Function F Is One-To-One $$f ( x ) = \sqrt { x - 1 }$$

question 100

Multiple Choice

The function f is one-to-one. Find its inverse.
- $$f ( x ) = \sqrt { x - 1 }$$

• A) \(f ^ { - 1 } ( x ) = x ^ { 2 } - 1 , x \geq 0\)
• B) \(f ^ { - 1 } ( x ) = \sqrt { x + 1 }\)
• C) \(f ^ { - 1 } ( x ) = x ^ { 2 } + 1 , x \geq 0\)
• D) \(f ^ { - 1 } ( x ) = ( x - 1 ) ^ { 2 }\)

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