Question

Which of the statements are true?

Answer 1

False,

False,

True,

False

Explanation:

1) f is not one to one:

example: /pie nit equal to 2/pie but,

sin(/pie)=sin(2/pie)=0.

2) f is not onto in R, becose sinx is not for example 2, or any other real number greater then 1.

3) is true

4) for any x e^x is positive, so g: R—>R, so e^x will never be for example -5 which is real number:)