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

Question 255

Multiple Choice

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


A) f−1(x) =x2−1,x≥0f ^ { - 1 } ( x ) = x ^ { 2 } - 1 , x \geq 0
B) f−1(x) =x+1f ^ { - 1 } ( x ) = \sqrt { x + 1 }
C) f−1(x) =x2+1,x≥0f ^ { - 1 } ( x ) = x ^ { 2 } + 1 , x \geq 0
D) f−1(x) =(x−1) 2f ^ { - 1 } ( x ) = ( x - 1 ) ^ { 2 }

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