Example of Chain Rule 4 - Triple Chain Rule

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Calculus: Using a triple chain rule, calculate the derivative of f(x) = sin((1+x^2)^{1/2}).
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It's been awhile since I've taken calculus but I still randomly think of you and your videos. You made such a positive impact in my education and I can't thank you enough for putting these up and keeping them online. I've watched many videos on calculus over the years but yours always really spoke to my brain that really made the concepts clear and understandable. Just going back and watching some videos, so glad to see they are still up. Hope all is well.

Mikej
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What's with the stick? Is this guy a Marine from the '50s or something? Is Doctor Bob formerly Gunny or Top Bob? I heard some Army guys may have carried them around the mid to late '80s, so maybe this guy is a soldier? Either way, I learned something about math, so it's a win.

TurdFurgeson
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i like your explanation, keep up the good work! Thanks!

blacker
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is ln(cosh 3x) a triple function? fgx?

domeee
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yes. First we compute 3x, then that goes into cosh(y), and finally we put that into ln(z). - Bob

MathDoctorBob
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i'm too frightened to not understand the material...

nati
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