The Four 4S Problem Answers 1-100

Im trying to figure out this four 4's math problem but im stuck on how to get to 19 and 20.

The Four 4S Problem Answers 1-100. If i'm not mistaken, one must form a statement using exacty four 4s that will yield the numbers 19 and 20. There is an old math problem in which you are challenged to use four 4s and any operations to write equations that have the numbers from 0 to 100 as the answer.

Four 4s Digital Google Slides Distance Learning Virtual Math Activity
Four 4s Digital Google Slides Distance Learning Virtual Math Activity from ecdn.teacherspayteachers.com
Use exactly four 4's to form every integer from 0 to 50, using only the operators +, −, ×, /, () (brackets),. Designers in all kinds of industries to design and test products; All figures accompanying problem solving questions are intended to provide information useful in solving the problems.

100= 4*4!+sqrt 4+sqrt 4 it looks wierd but its the right answer u can even check it in google calculator.

Weather forecasters to show changes in weather; Web designers to create pages for the web; Our experts have verified all exam answers before we published to the website. Yes, and what's the actual problem?