limit at infinity e^(-2x)*cos(x), calculus 1 tutorial

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#blackpenredpen #math #calculus #apcalculus
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this account has singlehandedly saved my calculus grade

milliefisher
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I love how you explained EVERY LITTLE STEP AND WHY IT IS THAT WAY ALONG WITH AN EXAMPLE (like graphing cos(x) to explain why its range is -1 and 1). Most places I go to for help just shortcut around and it's annoying since I want to learn why that step came to be. Keep up with the videos! I love it!

Kakashi
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Beautifully explained. Easy to understand. Good job.

davidamendez
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I think you could also do it using squeeze theorem/sandwich theorem.
nice one though

akshatsrivastav
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the background music is disturbing but thanks for sharing it was helpful

zahidgul
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Protip: I was taught that whenever you have a situation of a lim f(x) g(x) where f(x) has a limited range (ie. upper and lower bound is a real number) and g(x) goes to infinity or zero, then the limit is always infinity or zero respectively

MenkoDany
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That's the way I got zero, my cal professor used the squeeze theorem to get 0.

zerowolf
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YOU ARE THE BEST OMG!!!! Thanks a lot and keep up the good work!

QueenEsi
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Could you do some more videos about limit approaches to infinite ?
You would help me a lot.
Thank you

rosawu