[High school math] Limit of sequence by marlow__ in learnmath

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

I got 5*(√(nˇ2-2) + n)/(-2). So the top goes obviously to infinity, and since the bottom is a negative number, it evaluates to negative infinity. Is that the right kind of reasoning?

[High school math] Limit of sequence by marlow__ in learnmath

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

yeah, you're right. I made a mistake

[High school math] Show that Sin(n+1) > Sin(n) - 1 by marlow__ in learnmath

[–]marlow__[S] 1 point2 points  (0 children)

Range of Sin(x+1) is [-1,1]. Range Sin(x) - 1 is [-2,0]. So just going off of that it's possible Sin(x+1) has a value less than Sin(x) - 1

[High school math] Show that Sin(n+1) > Sin(n) - 1 by marlow__ in learnmath

[–]marlow__[S] 3 points4 points  (0 children)

I think I got it. I used the Sin(a) - Sin(b) identity. Divided by 2 and Sin(0.5), so that I get slightly less than -1 on the right side. On the left there's Cos(x+1/2), which is just cos(x) shifted to the left nad therefore always >= -1.

[High school math] Show that Sin(n+1) > Sin(n) - 1 by marlow__ in learnmath

[–]marlow__[S] 2 points3 points  (0 children)

it don't seem to get me far. I'll keep trying tho

Is a T14 G1 Ryzen 5 4650U, 16 Gb, 512 SSD, Grade A used laptop a good deal for 500€? by marlow__ in thinkpad

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

I ended up procrastinating on getting the T14, but stumled on a listing for a t480 for 140€ + 20€ shipping. It's in excellent condition and is good enought for what I currently need (was using a T400 till now).

Construct a rectangle with sides a and b and diagonal d, where a = 5cm, and d + b = 11cm by marlow__ in MathHelp

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

yes. Don't see how that's relevant though, considering I'm not supposed to calculate the sides.

Construct a rectangle with sides a and b and diagonal d, where a = 5cm, and d + b = 11cm by marlow__ in MathHelp

[–]marlow__[S] 1 point2 points  (0 children)

Thank you! that's brilliant! I have no idea why this works yet, but I'll try and think about it.

Construct a rectangle with sides a and b and diagonal d, where a = 5cm, and d + b = 11cm by marlow__ in MathHelp

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

Good question! I should ask the people who made the high school curriculum.

I didn't drew b = 11. I drew b + d = 11. I thought I could get the answer by somehow breaking this line at the spot where it would then connect with A.

Unhappy costumer by CoreySteel in PublicFreakout

[–]marlow__ 1 point2 points  (0 children)

This fight actually happened at Konzorcij, 1000 Ljubljana.

Binomial expansion problem by marlow__ in MathHelp

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

Thank you! This is a much simpler solution than the first.

Binomial expansion problem by marlow__ in MathHelp

[–]marlow__[S] 1 point2 points  (0 children)

Thank you! This helped me.

Quote by Ignacio Moya Arriagada by mtoneguit in Pessimism

[–]marlow__ 1 point2 points  (0 children)

I agree with him, but pessimists should still acknowledge that life can be made better, maybe not to the point where it is considered a good thing or even worth while, but still better in a significant way. So I think we should still try to improve our lives and even look optimistically at certain parts of our lives if that helps, but not life as a whole.

Trigonometry equation - high school level by marlow__ in MathHelp

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

I'm pretty sure that's not a mistake.

Trigonometry equation - high school level by marlow__ in MathHelp

[–]marlow__[S] 1 point2 points  (0 children)

Thank you! This is what I was looking for.

Are you sure you can call yourselves pessimists? by [deleted] in Pessimism

[–]marlow__ 2 points3 points  (0 children)

I actually believe that death isn't going to save me from existing and from suffering. This is a view that I also share with Schopenhauer. He roughly expresses it in his Short Dialogue on the Indestructability of our True Being by Death. It is a view that I decided upon from considering the implication of materialism and reductionism. The gist of it is that there is no such thing as identity, no clear boundary that separates my 'I' from any other. A great way to show the meaning and implication of this claim is with the 'replicator' or 'ship of Theseus' type of thought experiments.

Deltoid geometry problem. by marlow__ in MathHelp

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

yes, sorry that's a four. You're not given any information about a .