Integral of tan(x)*sec^3(x), tan sec approach, calculus 2 tutorial

preview_player
Показать описание
Integral of tan(x)*sec^3(x), tan sec approach

----------------------------------------
#blackpenredpen #math #calculus #apcalculus
Рекомендации по теме
Комментарии
Автор

This guy explains everything straight forward.

martinalmaraz
Автор

Thank you so much! I love you, you are the best!

gilmaferrer
Автор

Professor, I just wanted to make a point pertaining to how much different our styles of integration are, we both arive at correct results, but use very different approaches. E.g. I would have first rewritten the integrand as sin(x)/cos^4(x) and done a t substitution t=cos(x) which would result with an integral easily solvable via the power rule. Also, thanks for widening my views in integration and math in general, your videos are the best!

mrkenzivedran
Автор

Thank you for finally explaining where that power went. All the help I could find would leave that out with no explanation and I just wanted to know WHY! Seems obvious now, lol, but hindsight is 20/20. Subscribed, you earned it!

matthewwells
Автор

I personally change that integral to sinx/cos^4x dx and using u subtitusion u=cosx...

ahmadyogi
Автор

Sir, you're a math-magician and thank you for this video.

calyptracatochrysops
Автор

saved me from crying on a Friday night thanks man

neilsmit
Автор

Thank you so much!! This really helped me a lot.

andreac.
Автор

Thanx sir i'm from india and you
you lecture is most useful 👌🏿👌🏿👌🏿

AmirAkela
Автор

I LOVE YOU
nobody else can explain me that

tatianasanchezphillips
Автор

Fue mas fácil de lo que parece, mil gracias <3

paokogane
Автор

Y si separó sec^2 x tan x sec x, y convierto a tangente el sec x, puedo usar u= tan x du= sec^2?

ChristoSantos
Автор

why didn't you substitute both sec for U. shouldn't it have been tanx U U^2?

clearilluion
Автор

Integral = (secx)^2 d(secx) = 1/3(secx)^3 + C, so we forget “the U business”

seegeeaye
Автор

so in this problem u=sec(x) but we aren't forced to replace all instances of sec(x) with u?

In another problem I did, integral of (sin(x))^7 * (cos(x))^5, in one of the steps I made u=sin(x) and then replaced all instances of sin(x) with u. My final answer ended up being right.

So then are we able to use u in both ways? Where it can replace one instance OR all instances freely? Or did I just coincidentally end up with the correct answer in my problem?

TheSilverWolf
Автор

just take ( U=sec x) and then solve it will give result in 2

inclinedscorpio
Автор

No entendí lo que estaba diciendo pero sí el ejemplo en la pizarra:)

mariafernandatorresbarron
Автор

how to solve integral of tan^4xsec^3xdx I neeed immediately 🙁🙁🙁

dhasarathi
Автор

I am watching this after 6 years now in June 2021. And I feel like the teacher should have kept the mic down while explaining. Thank you for explaining, I got it!

omkarpol