The Official Homework Help Thread

[Juurii]

you need to memorize all of the trig stuff and just be able to recognize it :T
sosmath has all of those to memorize

- - - Post Merge - - -

there's also a way to learn them by Pythagorean theorem but like eh.
so much work. better to memorize them

 

[Zandy]

Bump ~

 

[Superpenguin]

so is it just something you kinda have to have memorized? will the answer be the same format for these types of problems?
but thank you both so much for your help! hopefully he understands it ^^

Actually, you don't need to memorize something like this. Eventually, you'll be able to recognize instantly it's going to be tan^-1 solution, however, you find this by using integration by substitution.

Set:

u = x/3
3u = x
3du = dx

I would plug those values in for you, but it would look like a complete mess, and I believe you should be able to substitute them in yourselves. By doing this you will get 1/(u^2 + 1) which is much more easily recognizable.

 

[Monster]

Solved my problem regarding my physics problem. Thanks!

 

[unravel]

Is having a hard time with this (my last assignment and I'm done)

Spoiler: C programming question using C functions

 

[ApolloJusticeAC]

how do you guys do this

i have multiplication and division homework ;-;

 

[Llust]

i'm supposed to translate this all into romaji then into english, but i already got the translation covered. i just need someone to check my work -- and theres suppose to be a typo in some of the phrases but i cant seem to figure out where they are. if someone could help me with that, it would be much appreciated

1.) こひい わ いかが ですか // would you like coffee?
2.) なにい を して いる // what are you doing?
3.) ごめなさい、 いくら です わ // sorry, but how much was it?
3.) といれ わ どく でそ か? // where's the toilet?
4.) こんにちわ、 うんげき です か // hello, how are you?
5.) すみいません // excuse me
6.) だて しません か // would you like to go out on a date?
7.) のだ が いたい // my throat hurts
8.) びょういん // hospital
9.) きぶん が わるい // im sick

 

[Hatori]

1. Coffee = コーヒー
2. なに　(No extra い)
3. 。。。ですか (Not わ) Sorry = ごめんなさい
4. Toilet = トイレ, どこですか
5. Genki = げんき、Not うんき
6. Date = デート
Excuse me = すみません

Not sure if I understood your question correctly, but I hope this helped. I think the rest are fine but perhaps someone else can double-check?

(The numbers confused me!)

 

[Izzy Reincarnated]

i'm supposed to translate this all into romaji then into english, but i already got the translation covered. i just need someone to check my work -- and theres suppose to be a typo in some of the phrases but i cant seem to figure out where they are. if someone could help me with that, it would be much appreciated

1.) こひい わ いかが ですか // would you like coffee?
2.) なにい を して いる // what are you doing?
3.) ごめなさい、 いくら です わ // sorry, but how much was it?
3.) といれ わ どく でそ か? // where's the toilet?
4.) こんにちわ、 うんげき です か // hello, how are you?
5.) すみいません // excuse me
6.) だて しません か // would you like to go out on a date?
7.) のだ が いたい // my throat hurts
8.) びょういん // hospital
9.) きぶん が わるい // im sick

1. こーひー　は　いかが　ですか？
2. なに　を　している
3. ごめんなさい、　いくら　ですか？
4. といれ は　どこ　です　か？
5. こんにちは、　おげんき　です　か？
6. すみません
7. でえと　しません　か？
8. のど　が　いたい
9. びょういん
10. きぶん　が　わるい

You put two 3's btw, so I fixed that.

If you have any Japanese questions, feel free to ask me ^^

BTW, といれ、でえと、 and こーひー would all be written in katakana since they're loan words from English, so they are トイレ、デート、 and コーヒー

^^

 

[Llust]

@Hatori & Izzy Reincarnated

thank you c:
this is pretty much review from last year but i forgot so many things already ;v;

 

[Zandy]

Bump ~ Hoping that some unanswered questions can get some responses soon .

 

[MelaniteMoon]

@Aestivate

Imparfait is used in a couple different circumstances, one of them is that you were doing something until you were interrupted by something something else. That's because imparfait is an action that happens over a long period of time or an incomplete one or a feeling or description of something. Pass? compose is used when an action has a clear start and finish like Je suis tomb?, (I fell) the action is done almost immediately and has a clear start and finish whereas a verb like J'aimais (I liked) is a very general action and you can't really tell when or where it started or ended. In a sentence like the one you wrote, you were doing something until something else happened, so the first verb would be imparfait and the action that is interrupting the previous action would be in pass? compos?.
So with
"Je (ecouter) de la musique quand quelqu'un (frapper) a la porte"
it would look like
"J'ecoutais de la musique quand quelqu'un a frapp? a la porte"
"I was listening to music when someone knocked on the door"

Pouvait and avait are the conjugated forms of pouvoir and avoir with the imparfait endings. I'm not sure I understand your question since both of these have no special agreements in imparfait but these two verbs are more commonly in imparfait form rather than pass? compos? because they are more abstract. Simply because logically you don't just start or stop being able to do something with pouvoir and avoir where you're describing something (ex: I have blond hair).

I'm sorry if that was really confusing or way too much info.

 

[Monster]

Is having a hard time with this (my last assignment and I'm done)

Spoiler: C programming question using C functions

What are you having trouble with? I'm not entirely familiar with C++, but I do know Java.

 

[MelaniteMoon]

What are the differences between the physical, chemical and nuclear properties of isotopes? I don't remember learning this last year

 

[unravel]

What are you having trouble with? I'm not entirely familiar with C++, but I do know Java.

I asked the teacher about this and I knew theres something lacking already answer the problem ty

 

[KarlaKGB]

What are the differences between the physical, chemical and nuclear properties of isotopes? I don't remember learning this last year

isotopes are versions of the same element (ie. atomic number) but with different numbers of neutrons (ie. atomic mass). For example, chlorine exists as two common isotopes, Cl-35 and Cl-37. This is also why most elements do not have integer atomic masses (chlorine is often written on periodic tables as being atomic mass 35.5, but how can u have half a proton or neutron?!?!??!). The reason is the aforementioned chlorine isotopes exist in an approximate 3:1 ratio (75% Cl-35, 25% Cl-37), so on average, the atomic mass works out to be 35.5

as they are the same element (and by extension, have the same no. of electrons), the chemical properties of isotopes are identical.

but as their atomic masses are different, u will see different physical properties and nuclear properties. many isotopes are highly unstable (ie. radioactive) and will decay.

 

[Aestivate]

@Aestivate

Imparfait is used in a couple different circumstances, one of them is that you were doing something until you were interrupted by something something else. That's because imparfait is an action that happens over a long period of time or an incomplete one or a feeling or description of something. Pass? compose is used when an action has a clear start and finish like Je suis tomb?, (I fell) the action is done almost immediately and has a clear start and finish whereas a verb like J'aimais (I liked) is a very general action and you can't really tell when or where it started or ended. In a sentence like the one you wrote, you were doing something until something else happened, so the first verb would be imparfait and the action that is interrupting the previous action would be in pass? compos?.
So with
"Je (ecouter) de la musique quand quelqu'un (frapper) a la porte"
it would look like
"J'ecoutais de la musique quand quelqu'un a frapp? a la porte"
"I was listening to music when someone knocked on the door"

Pouvait and avait are the conjugated forms of pouvoir and avoir with the imparfait endings. I'm not sure I understand your question since both of these have no special agreements in imparfait but these two verbs are more commonly in imparfait form rather than pass? compos? because they are more abstract. Simply because logically you don't just start or stop being able to do something with pouvoir and avoir where you're describing something (ex: I have blond hair).

I'm sorry if that was really confusing or way too much info.

Thank you so much! It wasn't confusing, I understand it now. I'm happy you took the time answer my question.

(Also thanks to Zandy for notifying me that someone answered the question)

 

[himeki]

Does anyone know any features of Shakespearean comedy?

 

[Mao]

sorry if this is a stupid question, but I would really appreciate it if someone could help me translating this phrase: comme tous les mardis alors que vendredi. I've tried translating it but I just got something which didn't make sense

 

[Saylor]

Does anyone know any features of Shakespearean comedy?

Well, many Shakespearean comedies contain elements of tragedy and romance as well, but unlike his tragedies they typically have a happy ending. Since romance is still usually prevelent in his comedies, oftentimes the happy ending involves some sort of unition between two lovers. Also, the comedies tend to be a bit less structured in comparison to his other genres as they contain lots of plot twists. The dialogue itself is characterized by heavy usage of puns, insults, sarcasm, etc.