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Domain of a function, the 3 common cases to be careful! - Videos

By Rohit Manglik - 6 years ago

How to find the domain of a function?
Here I go over the 3 situations (with 6 examples) that you must know!
part 2: https://youtu.be/phnRxBTrizE

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Rohit Manglik

Rohit Manglik, the Founder-cum-CEO of EduGorilla Community and an Edupreneur by his nature, crafts articles for the spheres of technology and education. Rohit nurtures a longing to metamorphose India's conventional backdrop of education to be at par with the one availing Machine Learning, AI & VR.

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View Comments

AniPrograms says:

July 2, 2018 at 11:25 am

Thanks for the algebra refresher. I don't think I was ever taught the domain of a cubic root c:
TheChannelOfEandM X says:

July 2, 2018 at 5:58 pm

Hey bprp! Can you integrate sin (2pi*sqrt (1-x^2)) ?? I've tried a lot but couldn't get anything😅😅
WittyFool says:

July 2, 2018 at 9:12 pm

@ 9:40 assume the ≧ inequality symbol shouldn't change upon multiplying or dividing by negative numbers, let x=1
x≧-5
-x≧5
if x = 1
-1≧5
Proof by contradiction shows that the inequality signs must be changed to their opposite upon a negative multiplication or division. ≦ ≧ ＜＞
The real question is what do inequalities with complex numbers look like!!!!?????? 我的天啊????!!!! #YAY
Song Name? says:

July 2, 2018 at 9:48 pm

BPRP YOUR HAIRCUT LOOKS NICE!
John-Athan Crow says:

July 2, 2018 at 11:27 pm

Or saying all x (But only in the real world)= your 2 ways.
John-Athan Crow says:

July 2, 2018 at 11:31 pm

20× speed, eh?
JZ Animates says:

July 3, 2018 at 1:22 am

Hey blackpenredpen. I love your videos and always look forward to when you upload. I couple of days ago I found an algebra problem that I would love to see you solve in a video. It is:

What is the value of ‘y’ so that y times x^1/sqrt(x) = x

If you could do this in a video I would really appreciate it!
ming hei wong says:

July 4, 2018 at 3:41 pm

I think you mixed up maximal domain and domain
Karsten Meinders says:

July 7, 2018 at 3:11 am

Please show examples of functions where all 3 cases apply: 1/x, ln x, sqrt x.
altrag says:

July 7, 2018 at 10:40 am

Good old BPRP. Jump straight from the x^y=y^x video to high school level.