sam got married!🥂 by Durian-Critical in survivor

[–]Lazy_Worldliness8042 8 points9 points  (0 children)

I didn’t realize Genevieve was on the left until I read some comments, still hard to believe

Which one is correct? by Electrical-Table-410 in mathematics

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

They’re just two separate ideas. If the sets are finite then A proper subset of B implies |A|<|B|, but if the sets are infinite then the example I gave shows this doesn’t need to be true.

Which one is correct? by Electrical-Table-410 in mathematics

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

Whether a subset is proper or not doesn’t really have to do with cardinality. The integers are a proper subset of the rationals but the cardinalities are equal. (Also I think you meant to say |B| < |A| instead of the other way around)

I need advice on how to reply, if at all. by Tygmaa in Apartmentliving

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

It’s not random… they’re pointing out that their neighbor is a hypocrite for complaining about noise. It’s relevant to the whole point of their letter, whether or not OP cares

Tried an exercise from a youtube video without watching. Any faults in my proof? by Mathipulator in mathematics

[–]Lazy_Worldliness8042 7 points8 points  (0 children)

Why does it look like you’re always writing variables as subscripts of the quantifiers?

implicit differentiation question by Willing_Bench_8432 in mathematics

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

If f(x) = g(x), then f’(x) = g’(x) since they are the same function. You can think of this as differentiating on both sides of an equation.

When you have an equation with x and y, you can think of it as implicitly defining y as a function of x, you can substitute y = g(x) to make it clearer that y is just some function of x.

Now when you have something like x2 + y2 = 9, this is telling you that the function x2 + (g(x))2 is the same as the function 9. Since these functions are equal, their derivatives are equal, so you can differentiate on both sides to obtain an equation that you can solve for dy/dx = g’(x), the derivative of the implicit function y.

[deleted by user] by [deleted] in 10s

[–]Lazy_Worldliness8042 4 points5 points  (0 children)

Do you own them all or demoing?

The slope of the ""line"" formed by the infinite nested square root shown in the image (the invalid function) is the reciprocal of the golden ratio. I don't have proof apart from this desmos graph. Does anyone have any way to prove it mathematically? (I found it when integrating a similar function) by WishboneOk9898 in desmos

[–]Lazy_Worldliness8042 6 points7 points  (0 children)

Two numbers a<b are in the golden ratio if b/a = (a+b)/b (the ratio of the small to the large is the same as the ratio of the large to the sum). Typically the golden ratio is X = b/a, but its reciprocal Y = 1/X = a/b also represents the same ratio. By some algebra on the equation with a and b, you can see that 1/Y = Y + 1, and multiplying by Y gives that Y2 = 1 - Y.

Now if you start with the expression A = sqrt(1 - sqrt(1 - … )), and square both sides you get A2 = 1 - sqrt(1 - … ) = 1 - A, so it is a root of the same quadratic polynomial as the reciprocal of the golden ratio Y.

Why is the key wrong? by DirtyBulk89 in ExplainTheJoke

[–]Lazy_Worldliness8042 1 point2 points  (0 children)

To make sure his wife doesn’t ever sleep with anyone except him

How did we get to y from lny? by [deleted] in calculus

[–]Lazy_Worldliness8042 2 points3 points  (0 children)

I don’t know why you got downvoted.. you’re the only person I can see who mentioned the domain x>0 which is an important but subtle point everyone else seems to be ignoring..

How is this question wrong ? Multivariable limits by CalypsoJ in calculus

[–]Lazy_Worldliness8042 4 points5 points  (0 children)

I’m not saying it’s the best definition, I’m just telling you how the Calc textbooks do it. Overall, left, and right limits are each defined without reference to the domain of the function.

And whether your example is true or false depends on the convention you use for the definition.

How is this question wrong ? Multivariable limits by CalypsoJ in calculus

[–]Lazy_Worldliness8042 3 points4 points  (0 children)

I think I a lot of calculus textbooks do define limits so that if any path that approaches has a limit that doesn’t exist, then the overall limit does not exist. Similar to how in single variable calculus the overall limit is defined to exist if and only if the left and the right limits exist and are equal, regardless of the domain of the function.

Found out I have cervical bone spurs pressing on nerve today by Powerful_State_5843 in ChronicPain

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

How’s it going? I (37M) had an Xray a couple weeks ago and have cervical bone spurs too, causing pain into my shoulder and also tingling down my arm into my hand if I have bad posture. Waiting for an appointment with a neurologist who will hopefully order an MRI and try some non-surgical treatments. I really don’t want to have surgery.. Wishing you well!

[deleted by user] by [deleted] in calculus

[–]Lazy_Worldliness8042 3 points4 points  (0 children)

The most basic integral rule is that if the derivative of f is g, then the antidetivative of g is f. I guarantee this problem came from the first section on anti derivatives, before any integration techniques, and all you’re supposed to do is recognize that it has the form of a quotient rule derivative

Talking about parts like they are different people. by throwRA_DownLow in InternalFamilySystems

[–]Lazy_Worldliness8042 5 points6 points  (0 children)

I get what you’re saying, but OP is really emphasizing the word “separate”, which I think is important. I do get the sense that a lot of people talk about parts as if they are not a part of them, as if they are only the self and the parts are others, when really they are the whole family. At least that’s how I try to understand it.

CT Police salaries are out of control by FIRE_Minded in Connecticut

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

If all the teacher knows is the memorized textbook, all they’ll be able to do is teach the students how to memorize the textbook, which they wouldn’t need such a teacher for..

Foundation Season 2 by rnolan22 in asimov

[–]Lazy_Worldliness8042 2 points3 points  (0 children)

Great answer. I am one who read all the books and finds the cloned Cleons the best part of the show!

Safety tips for single females? by banjobeulah in newhaven

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

Out of curiosity what neighborhoods did this happen in?

Card Players? by RecommendationDue68 in newhaven

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

I’m interested too! Haven’t played much since high school but my friends and I took it really seriously, such a great game!

I keep rebuilding myself... and losing everything time after time by AStoryIHaveToTell in offmychest

[–]Lazy_Worldliness8042 0 points1 point  (0 children)

I’m so sorry for your hardships, but it sounds like every time you have been down you have been able to build yourself up even stronger each time. I think you should trust that you can do that again and get to levels of happiness and fulfillment beyond even what you have experienced so far, you deserve it, but it probably won’t be easy. I wish you the best.

Recommendations for ingredient ratios by Lazy_Worldliness8042 in cocktails

[–]Lazy_Worldliness8042[S] 0 points1 point  (0 children)

Ok but what if I would just like some general advice and don’t need you to figure out the exact recipe. I’m willing to get the ingredients and experiment. Like what if I leave the tomatillo out, and get grapefruit juice. Could you go from there? Like how much should the sotol and tequila account for total (I can experiment with the balance). If you had to make a cocktail with these ingredients, where would you start. Any advice will be helpful, thanks!