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Let f:[0,5] to [-1,5], where f(x)={x^2-1...

Let `f:[0,5] to [-1,5]`, where `f(x)={x^2-1,0 <= x < 2` , `1/3(19-2x), 2 < x lt= 5`
then `f(x)` is : (A) one-one and onto
(B) one-one and into
(C) many one and onto
(D) many one and into

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