A cubic compared with a square
A cubic compared with a square
3 marks
TGM Original
For all real x, let f(x)=x3+1 and g(x)=x2+1. Without differentiating, explain which has an inverse function on R.
Solution:
Solution locked
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.
Create a free account to practise similar questions.
Answer:\(\mathrm f\) has an inverse; \(\mathrm g\) does not.
Need help? Join our JC Math tuition classes.
Learn more