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Question

If y = f : A  B, then which of the following is true if f(x) is a function in x?

(i) x must be able to take each and every value of A.

(ii) one value of x must be related to one and only one value of y in set B. 
 



A

Only (i)

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B

Only (ii)

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C

Both (i) and (ii)

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D

None of these

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Solution

The correct option is A

Both (i) and (ii)


Both (i) and (ii) are part of the definition of function. ((i) and (ii) together forms the definition of function).


Mathematics

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