I've seen professors struggle with certain problems but when one of us corrected/helped them they never complained, in fact they thanked us all of the time. Not everyone is perfect and humility is really helpful
Humility and admitting you're wrong is the hardest thing ever. Even when you've admitted being wrong in the past, being consistently humble is tough. I'd say having some ego is brings out some diversity instead of boring humble people all the time.
This reminds me of my physics class when the teacher didn't know how to do one of the problems 😅. Congrats on 10 years bprp. You are the best! I use your questioning strategies when I teach to great success! Here's to 10 more years!
Its the Greek letter sigma and stands for sum in math. What it does is starting from the number written under the symbol up to the one on the top evaluates the expression that is given to it (written on its right) with replacing the variable with the number that it is currently on, and equals to the sum of all the evaluations it made.
Why do you try to say it faster than you're comfortable with? Solution for people in comments: Limit test, take the (1 + 4/(n+4))^n to inf, you get some expression of e, meaning the summation diverges.
My first thought for #15 is make it (n/(n+4))^n = 1/(1 + 4/n)^n, which tends towards 1/e^4 as n goes to infinity. Since this is a finite nonzero constant, and the series is infinite, I think the sum would be divergent!
No reply to my question Just ignore I used to like your videos But then you just ignore your subscriber Keep up the good work but sorry I’m v upset with you Thought you are v helpful but you disappointed me for ignoring Well done 👍🏼👍🏼
