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JEE MATHEMATICS MCQ: FUNCTIONS

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Let A={−3,−2,−1,0,1,2,3}A=\{-3,-2,-1,0,1,2,3\}, then number of functions from AA to AA which are odd and f(i)≠if(i) \neq i (∀ i=−3,−2,−1,1,2,3)(\forall \, {i}=-3,-2,-1,1,2,3) is/are
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Correct option: B
216
The correct answer is [0,1) because the function f(x) = x2/(1+x2) always produces values between 0 (inclusive) and 1 (exclusive) as x varies over all real numbers.

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