What is the difference?
To try doing something
Try to do something
I found that try + infinitive means: make an effort to achieve something while try + -ing means: do something as an experiment to solve a problem.
Why don't you try holding your breath for a minute or two?
Why don't you try to hold your breath for a minute or two?
The answer key indicates that the meanings of these two sentences are different. How are they different?