If f(x) = y then f -1(y) is equal to :

1.	If f(x) = y then f ^-1(y) is equal to :
A.	y
B.	x
C.	x<sup>2</sup>
D.	none of the mentioned
Answer» C. x<sup>2</sup>

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If f(x) = y then f -1(y) is equal to :

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If f(x) = y then f ^-1(y) is equal to :