Believe in Calculus, NOT calculators

This calculus tutorial covers how to use a differential to approximate 1.997^4. This is an old exam question for my calculus 1 class. Now you can get it as a practice exam here:   / calculus-1-exam-171977336   Shop math shirts: Math Shirts: https://amzn.to/3qBeuw6 ----- This channel is dedicated to creating helpful calculus tutorials for high school and college students around the world. Thank you to these Patreon members for building this with me 3Blue1Brown • Allison Lamery • Anthony Hunting • Anyway • Ben Delo • Caoimhe Seymour • charlie lewinski • Corey Rufener • CTAR • David I Miller • Doc Ockey • exchsac • Gramps • Hayden S • huguens nevelus • jappiesaus • Jessica • Johan Renko • Karl Tang-Wang • Manil Trivedi • Mark Pagura • MarkM • Mas • Michael ZHOU • Michelle Liang • Mister Hardware • Mizel Cluett • Nerd • Nicolai Lilly • Ricardo Murillo • Rohan • SaltyFishbutwithDream • Sebastian Correa • Sharnay Ampos • Steven McEwan • Subotai Baghatur • Terry Chang • Tomaz Mevlja • Torbjörn Karlsson • Whoever • Zero • Zhansu • Matthias Beeler • bontle sjm • 博鈞 林 (Updated: October 2026   / blackpenredpen  ) ----- #calculus #bprpcalculus #mathtutorials #math