Determine whether each of the functions below is one to one, onto or both or neither: a. f:[-2,2] mathbb R defined by f(x) = x ^ 2
b. f:[0,2] mathbb R defined by f(x) = x ^ 2
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on putting x as minus 2 we get the answer as plus4
on putting x as plus2 we get the answer as plus 4
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