110. Zwierciadło wklęsłe - wszystkie konstrukcje

Note! In the image for the first construction, I drew a ray that doesn't start at point O, but it should. I don't know how that passed quality control... In any case, this ray isn't necessary to solve the problem, so I'll leave it as is. If you liked it, feel free to donate so I can keep recording: https://patronite.pl/fizykazdalnie https://keepme.live/u/chwiladladebila https://tipanddonation.com/fizyka.zda... Option for the poor: Share on Facebook and wherever you can, watch the full videos, click on the ads, like my Facebook page, and give me likes and comments to increase my reach ;) Because the more viewers, the more motivated I am, and sometimes I even want to live ;) Difficulty level: 1.7/5 Relatively politically correct version:    • 576 Zwierciadło wklęsłe - wszystkie konstr...   Source: me Pre-premieres and other attractions (e.g. Nudes):   / chwila-dla-debila-261644400909720   Business offer: 1) Patrons get what I promised in the thresholds, plus unlisted videos: 3 PLN: mechanics videos 5 PLN: all videos 9 PLN: as above and final exams (2017 and 2018 beautifully edited) 10 PLN: as above and access to Discord chat 20 PLN: as above and series with difficulty grading 2) I'm taking a COURSE to better pass my final exams. I'm also taking it during the summer, because it's better to start sooner than later. Ask here:   / chwila-dla-debila-261644400909720   Warning! Warning! Achtung! Wnimanje! Videos from before September 2016 are lightly edited or not edited at all. Watch AT YOUR OWN RISK. I'm slowly replacing them with decent versions. I have a New Year's resolution to "no swearing," but it doesn't work out, and teachers have trouble including it in class. That's why videos recorded since August 2018 have a link to the politically correct version at the bottom of the description. If there's no link, the video is politically correct. How to LEARN EFFECTIVELY with my videos:    • Jak zdać maturę z fizyki? 5 sposobów na zd...   and a word about playlists:    • Video   Problem difficulty scale: 0 to 1 - beginners 1 to 2 - middle school/7th or 8th grade 2 to 3 - standard high school 3 to 4 - difficult high school 4 to 5 - terrible high school 5 and above - college (however, the student problems are actually easy, but the mathematical tools used often go beyond high school math)