/sci/ - Science & Math » Thread #14385597

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Anonymous Mon 11 Apr 15:46:45 2022 No.14385597 View Reply Original Report

Quoted By: >>14385612 >>14385623 >>14385637 >>14385640 >>14386661 >>14386668

can YOU find the area which is painted black?

Anonymous

Anonymous Mon 11 Apr 2022 15:51:00 No.14385612 Report

Quoted By: >>14385628

>>14385597
Is that your honework? It shouldn't be very hard. What did you try so far?

Anonymous

Anonymous Mon 11 Apr 2022 15:53:54 No.14385623 Report

Quoted By: >>14385630

>>14385597
Yes.
1) Find the equations for the circle parts.
2) Calculate their intersection point.
3) Use this to setup the integral and evaluate it.

Anonymous

Anonymous Mon 11 Apr 2022 15:54:48 No.14385628 Report

Quoted By: >>14385731 >>14385837

>>14385612
no, it is not my homework, but I found it in some Facebook group and couldn't solve it, no one else could solve it too and the thread is dead. I tried to find 2 functions and find integral of it and failed.

Anonymous

Anonymous Mon 11 Apr 2022 15:55:54 No.14385630 Report

Quoted By: >>14385663

>>14385623
do it then.

Anonymous

Anonymous Mon 11 Apr 2022 15:57:44 No.14385637 Report

Quoted By: >>14385645

>>14385597
easy, it's right there, on the right side, the taily thing

Anonymous

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Anonymous Mon 11 Apr 2022 15:58:03 No.14385640 Report

Quoted By:

>>14385597

Anonymous

Anonymous Mon 11 Apr 2022 15:58:59 No.14385645 Report

Quoted By:

>>14385637
Dangerously based retard.

Anonymous

Anonymous Mon 11 Apr 2022 16:05:00 No.14385663 Report

Quoted By: >>14385674 >>14386954

>>14385630
Ok
1)
x^2 + y^2 = 4
(x - 1)^2 + (y - 2)^2 = 1
2)
x = 8/5
y = 6/5
3)
$<br />\int_{8/5}^2 \left(2 - \sqrt{1 - (x-1)^2} - \sqrt{4 - x^2} \right) dx = 2 - \arctan\left(\frac{1}{2}\right) - 4 \arctan\left(\frac{1}{3}\right) \approx 0.25<br />$

Anonymous

Anonymous Mon 11 Apr 2022 16:09:30 No.14385674 Report

Quoted By: >>14385683 >>14385697 >>14386732

>>14385663
nice, good job.

how did you find the intersection points?

Anonymous

Anonymous Mon 11 Apr 2022 16:11:56 No.14385683 Report

Quoted By: >>14385686

>>14385674
Divide or subtract the two equations.

Anonymous

Anonymous Mon 11 Apr 2022 16:12:50 No.14385686 Report

Quoted By: >>14385709

>>14385683
uhm and how did you get the two equations :D

Anonymous

Anonymous Mon 11 Apr 2022 16:14:14 No.14385697 Report

Quoted By:

>>14385674
Expand the squares in the second equation then subract the first equation to get a linear equation for x and y.
Solve this equation for y and plug it into one of the circle equations to get a quadratic equation for x. Then solve it with the quadratic formula.

Anonymous

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Anonymous Mon 11 Apr 2022 16:14:16 No.14385698 Report

Quoted By: >>14385721

Yes it's here

Anonymous

Anonymous Mon 11 Apr 2022 16:17:33 No.14385709 Report

Quoted By: >>14385751

>>14385686
Equation of a circle with radius r and center point (x_0, y_0)
$(x - x_0)^2 + (y - y_0)^2 = r^2$

Anonymous

Anonymous Mon 11 Apr 2022 16:21:05 No.14385721 Report

Quoted By:

>>14385698
>find the area which is painted black
what about these black borders?

Anonymous

Anonymous Mon 11 Apr 2022 16:23:37 No.14385731 Report

Quoted By:

>>14385628
go back to facebook, we don't want you people here.

Anonymous

Anonymous Mon 11 Apr 2022 16:28:44 No.14385751 Report

Quoted By:

>>14385709
thanks bro. understood everything this is very interesting.

Anonymous

Anonymous Mon 11 Apr 2022 17:03:50 No.14385837 Report

Quoted By: >>14385860 >>14386875

>>14385628
>i saw this on facebook
cringe

Anonymous

Anonymous Mon 11 Apr 2022 17:11:04 No.14385860 Report

Quoted By: >>14386165

>>14385837
fuck off snowflake

Anonymous

Anonymous Mon 11 Apr 2022 18:34:05 No.14386165 Report

Quoted By: >>14386467 >>14386643

>>14385860
No. Facebook is legitimately cringe. Are you 60, anon?

Anonymous

Anonymous Mon 11 Apr 2022 19:55:53 No.14386381 Report

Quoted By:

Find the area of lens BE, subtract the area of the square by the area of half circle and the quarter circle, then add the area of the lens. Trivial.

Anonymous

Anonymous Mon 11 Apr 2022 20:23:42 No.14386467 Report

Quoted By: >>14386651 >>14387079

>>14386165
>Are you 60, anon?
are you joking? facebook was started on college campuses for college kids about 20 years ago, its all millenials and zoomers who were the early adopters. former myspace users are who is on facebook

Anonymous

Anonymous Mon 11 Apr 2022 21:14:00 No.14386643 Report

Quoted By: >>14387081

>>14386165
Fucking zoomie newfags

Anonymous

Anonymous Mon 11 Apr 2022 21:15:43 No.14386651 Report

Quoted By:

>>14386467
>facebook was started on college campuses for college kids about 20 years ago
So are you in your 50s or 60s

Anonymous

Anonymous Mon 11 Apr 2022 21:18:31 No.14386661 Report

Quoted By:

>>14385597
Too easy. Found it immediately gimme a harder one

Anonymous

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Anonymous Mon 11 Apr 2022 21:19:32 No.14386668 Report

Quoted By:

>>14385597
Found it

Anonymous

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Anonymous Mon 11 Apr 2022 21:36:16 No.14386732 Report

Quoted By:

>>14385674
This is not difficult

Anonymous

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Anonymous Mon 11 Apr 2022 22:07:23 No.14386823 Report

Quoted By: >>14387012

Anonymous

Anonymous Mon 11 Apr 2022 22:22:10 No.14386875 Report

Quoted By:

>>14385837
There is a Facebook group called ">implying we can discuss mathematics" and yet I don't think they know about /sci/.
>inb4 how do u know?
Stfu. I don't use Facebook.

Anonymous

Anonymous Mon 11 Apr 2022 23:01:37 No.14386954 Report

Quoted By:

>>14385663
Baited into doing someones homework just for a (you).

Anonymous

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Anonymous Mon 11 Apr 2022 23:44:35 No.14387012 Report

Quoted By: >>14387020

>>14386823
The radius of the big circle is 2 not 1

Anonymous

Anonymous Mon 11 Apr 2022 23:49:14 No.14387020 Report

Quoted By:

>>14387012
I still got the right answer

Anonymous

Anonymous Tue 12 Apr 2022 00:24:16 No.14387079 Report

Quoted By:

>>14386467
Yes. I too saw The Social Media but it doesn't matter what it was originally invented for because only boomers use it. The only reason I keep it around (and that's messenger) is to speak with my aunts and uncles.

Anonymous

Anonymous Tue 12 Apr 2022 00:25:43 No.14387081 Report

Quoted By:

>>14386643
I'm 28, which is apparently still 30 years younger than you since you use Facebook.

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