TS ICET 20 Aug 2021 Shift 1 Paper

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Question : 115 of 200

Marks: +1, -0

Let

f: {R} \→{R}

be defined as

f(x)=3 x^{2}-7

for all

{x} \∈{R}

then

f

is

one-one and onto
one-one but not onto
onto but not one-one
neither one-one nor onto

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