An example of "obvious how ..." from Definition of obvious adjective from the Oxford Advanced Learner's Dictionary:
- obvious how, what, etc.
It was far from obvious how they were going to get off the island.
An example of "obvious of how ..." from a video of Khan Academy at around 3:00:
This is a one minus cosine squared theta, so it's not completely obvious yet of how you can simplify it, until you realize that this could be viewed as a difference of squares.
- Is there any difference between "obvious how ..." and "obvious of how ..."?