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Let f be an injective map with domain {x,y,z) and range {1,2,3} such that exactly one of the following statements is correct and the remaining are false : `f (x) = 1, f (y) ne 1,f (z) ne 2.` The value of `f^(-1)` (1) is

A

x

B

z

C

y

D

none of these

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B
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ML KHANNA-CONCEPTS OF SET THEORY -Problem Set (3) (FUNCTIONS AND MAPPING)
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