Sorry, not sure if this is the right forum for the question.
I have just purchased Rasberry Pi 3 and a wireless keyboard. How do I connect the keyboard to pi during first boot/installation of pi board? Without a keyboard, I can't interact with pi to set up the wireless keyboard!
Do I need a wired keyboard for 1st installation and to connect to wireless keyboard and afterwards I can use the wireless keyboard?
You do not need a wired keyboard, presuming the wireless keyboard you have is a standard USB style one. This does not include bluetooth keyboards, which you need to be able to log in and pair. However, you can do that via ssh, if you have another machine you can connect from.
Yes, you need a wired keyboard (and preferrably also a wired mouse) to do the first-time setup.
Later you can set up a wireless (bluetooth-)keyboard.
