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The function f : [0, 7] to [0, 70] where...

The function `f : [0, 7] to [0, 70]` where `f(x) = x^(3) - 12x^(2) + 45x`, is

A

one - one & onto

B

many - one & onto

C

one - onto & into

D

many-one & into

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The correct Answer is:
B
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