Question

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

Solution

Correct option is

f  is one-one and onto R

 which is always + ive and hence (x) is strictly increasing. Thus is one-one.

Also showing that range of f is whole ofR.

 is one-one onto.

SIMILAR QUESTIONS

Q1

The graph of the function 

Q2

     

Then for all 

Q3

 

 

Q4

Is equal to

Q5

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

Q6

 be to functions given by 

Q8

Given 

Q10