MAT122 SSII 2026 Week 4: Derivative Applications
Dear Students,
This week we investigated several applications of the Derivative! We introduced derivatives of sin(x), cos(x) using the Difference Quotient and tan(x) using the Quotient Rule. We used our understanding of Inverse Functions coupled with Implicit Differentiation and the Chain Rule to find derivatives for ln(x), arctan(x), arcsin(x) and arccos(x). We even talked about L'Hopital's Rule.
Then we developed the idea of Optimization. We introduced the 1st Derivative Test, the 2nd Derivative Test and the Closed Interval Test aka the Min/Max Theorem aka the Candidates Theorem. We even got to work a few Related Rates problems!
After all that, we started Unit 5 early dealing with Anti-Derivative Functions and Area. We played with some Riemann Sums and even wrote a TI-BASIC programs called LRTE.BAS to estimate these sums as LeftSum, RightSum, TrapSum & TrapError. Wow!
Please see WEEK04 notes on our Google Drive and our Screencasts on BrightSpace & YouTube!
Last, but not least, here's this week's Filks! We start each class with a fun Filk or short Documentary related to a specific topic we're learning in class or something related to STEAM.
That's it for now. Enjoy your weekend!
Well, that's all folks!
Be well,
A. Jorge García
Applied Math, Physics & CompSci
Nassau Community College (1993-)
http://shadowfaxrant.blogspot.com
http://www.youtube.com/calcpage2009
Baldwin High Retired (1984-2020):
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HTH,
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2017 NYS Secondary Math PAEMST Nominee

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