0,9999.... es 1

 https://youtube.com/shorts/IqCaLfRMg-U?si=HN3ms_8QwJRL0qkd

https://youtube.com/shorts/ed2MjDO83XM?si=7zWZrcbtMh-zAVJ1

https://youtube.com/shorts/2mmozoa6qy8?si=w9PCVat5C8iCk1bq