My monitor must be different than some others. They're talking about things being unreadable, yet I noticed no issue at all? Aside from that, I did have a question that others have asked as well: where are absolute values used outside of math problems? Do physics applications use them, for example, in astronomy calculations or relative speed equations?
Solution: The absolute value function gives the distance to 0. And since distances are always positive we have two cases: x < 0 → |x| = -x x ≥ 0 → |x| = x (1) |100| + |-100| = 100 + 100 = 200 (2) | |-8 + 3| + (2 - 8) | = | |-5| + (-6) | = | 5 - 6 | = |-1| = 1 (3) (almost unreadable on the first page in the video, because of the white space between |, - and 9. It looks like 1 - 9 + 21 at first glance) | (2 - |2 - 4|) - | -9 + 2| | = | (2 - |-2|) - |-7| | = | (2 - 2) - 7 | = | 0 - 7 | = |-7| = 7
So without watching your video I’d say 200. Since we want to know the farthest point on a number line from zero is 200 since absolute values can’t describe the farthest distance on a number line, and in this context distance can’t be negatives.
You do a phenomenal job. My only confusion was the length of the absolute value bar in front of the number negative 7 on the third problem. I thought it was a number one till you said differently. G thanks again .
@@LysanderLH But simply because you don't like that your bank account registers -500 dollars, doesn't mean that the bank is going to simply wipe out the number, just because someone says that negative numbers are nonsense. They still can legally demand that you balance the account with 500 dollars.
@ Take 500 beans. Now remove 1 bean at a time until 1 bean is left. You would agree that you have removed 499 beans and now you have 1 bean. Now carry on and remove another 501 beans …. how many beans did you physically remove and how many beans are left?
@@LysanderLH In the case of your credit card and the bank, you asked someone who had the additional beans to allow you to use those beans for your purposes, under the agreement that you would provide that many beans back to the lender. In the case of money, a contractual obligation creates the negative number situation. In physics, positive and negative charges can be represented as positive and negative numbers. A proton or positron is positively charged, while an electron or anti-proton is negatively charged. Accounting for these differences is necessary in order to have something like electricity be made functional for intended purposes.
I never thought I could enjoy so much a math video. Thanks, Susanne
The math queen with an easy one today
She occasionally gives our brains a rest!
I’m here for the Suzanna time; the math is a bonus
Never thought I would be watching a math video when I was an adult.
I do not ever having a teacher that is so beautiful.
Where was this lady 48 yrs ago? 😂
I know now why I didn’t get it then.
It was the instructor.
Enjoy the videos! Daily Mathematics exercises for the brain 🧠 💪
Wow! Such an easy thing brought me a smile. TY
Great video, as usual!
It’s in my head.
Good morning (afternoon)! Another fun math day.
Thanks
My monitor must be different than some others. They're talking about things being unreadable, yet I noticed no issue at all? Aside from that, I did have a question that others have asked as well: where are absolute values used outside of math problems? Do physics applications use them, for example, in astronomy calculations or relative speed equations?
Solution:
The absolute value function gives the distance to 0. And since distances are always positive we have two cases:
x < 0 → |x| = -x
x ≥ 0 → |x| = x
(1)
|100| + |-100|
= 100 + 100
= 200
(2)
| |-8 + 3| + (2 - 8) |
= | |-5| + (-6) |
= | 5 - 6 |
= |-1|
= 1
(3) (almost unreadable on the first page in the video, because of the white space between |, - and 9. It looks like 1 - 9 + 21 at first glance)
| (2 - |2 - 4|) - | -9 + 2| |
= | (2 - |-2|) - |-7| |
= | (2 - 2) - 7 |
= | 0 - 7 |
= |-7|
= 7
Hi, what is the program you use for your writing please?
Excellent and informative - one question - why do we use absolute value when instead of |2-| we can write 2. You probably think I'm crazy.🙏
Abs[100]+Abs[-100]=200 Abs[Abs[-8+3]+(2-8)]=1
When / where are absolute values used ?
And WHY are they used?
In math class.
@@Mindvirus-ly5ed lol
For example find the voltage of your AC from a wall socket. It's negative as much as it's positive, but it sure isn't zero!
Abs[(2-Abs(2-4))-Abs[-9+2]]=7
Abs[(2-12-41)-Abs[-9+21]]=63
Please, How to Solve this Exercise? WHICH IS BIGGER? 17^23 or 19^13?
So without watching your video I’d say 200. Since we want to know the farthest point on a number line from zero is 200 since absolute values can’t describe the farthest distance on a number line, and in this context distance can’t be negatives.
X,2×+5=8[n3]
I had to watch to see if there was a trick of some kind. ;-)
Oh I would walk one hundred steps and I would walk one hundred more...
You can think of absolute value as distance from 0. -100 and 100 are both 100 away from 0. Edit and then that was mentioned 10 seconds later haha.
You do a phenomenal job. My only confusion was the length of the absolute value bar in front of the number negative 7 on the third problem. I thought it was a number one till you said differently. G thanks again .
Only a Sith deals in absolutes!
Is anyone else getting goosebumps?
Yes, it’s her voice!🫠
you are not only beautiful , intelligent too
200 in 0.3 seconds
Maim use hindi audio track for better understanding maths
🇩🇴🇺🇸🇺🇸🇩🇴
There is no such thing as -100 ! 1 is the lowest whole number.
If I'm in debt to someone for 100 dollars, they act as though I have -100 dollars!
@ go into a bank and pay in -100 dollars … clue: conceptualising nonsense doesn’t make it make sense.
@@LysanderLH But simply because you don't like that your bank account registers -500 dollars, doesn't mean that the bank is going to simply wipe out the number, just because someone says that negative numbers are nonsense. They still can legally demand that you balance the account with 500 dollars.
@ Take 500 beans. Now remove 1 bean at a time until 1 bean is left. You would agree that you have removed 499 beans and now you have 1 bean. Now carry on and remove another 501 beans …. how many beans did you physically remove and how many beans are left?
@@LysanderLH In the case of your credit card and the bank, you asked someone who had the additional beans to allow you to use those beans for your purposes, under the agreement that you would provide that many beans back to the lender. In the case of money, a contractual obligation creates the negative number situation.
In physics, positive and negative charges can be represented as positive and negative numbers. A proton or positron is positively charged, while an electron or anti-proton is negatively charged. Accounting for these differences is necessary in order to have something like electricity be made functional for intended purposes.
I couldn’t read some of your writing.
There was writing? I didn't see any ;-)
Which writing? I was able to understand it all? The 7s had a bar through the middle, but that didn't mess me up?
Where were you when i was in school?