how can i remove beap.gemini.yahoo.com from my iPad?

If you came back to the same site that you got it before, it’s probably the site itself that is infected. I would suggest staying away from that site.

me too, just today i got this beap.gemini thing, and it's really annoying.. i've already cleared history, every data in my browser, but when i came back to that site, it popped out again.

see >>> What is beap.gemini.yahoo and how do I get rid of it? And how did it get p... - Webroot Community

Where are you seeing this? Where exactly on your iPad is it appearing?

I'm assuming this is affecting your Safari browser. If that's correct, tap Settings - Safari - Clear history and website data. If that's not it, explain the problem you're experiencing. Do not assume your device is infected.