Maths-

General

Easy

Question

# The function given by is

- A one-one function
- A one-one function
- A bijection
- Neither one-one nor onto

## The correct answer is: A bijection

### Given,

Since, this function is not defined

Let

For one-one

Take any straight line parallel to x-axis which will intersect only at one point.

is one-one.

Foe onto

As, , which shows

for irrational values real numbers.

Range=Codomain

is onto.

Thus, is one-one and onto.

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