Question

Solution

Correct option is

One-one but not onto

                                                                                 …(1)

For each value of x there is a unique value of y and hence the mapping is one-one. As x varies invaries in which is a subset of. Hence the mapping is not onto.

Alt. From given equation . Now for y = 1, there is no x and hence it is not onto.

SIMILAR QUESTIONS

Q1

If f (x) = cos (log x) , then

 has the value

Q2

The graph of the function 

Q3

     

Then for all 

Q4

 

 

Q5

Is equal to

Q6

Which of the following functions have inverse defined on the ranges:

Q7

 be to functions given by 

Q9

Given 

Q10

For real x, let (x) = x3 + 5x +1, then