WeiWeiMan
Well-Known Member
najust questioning if i can skip theand just say
bcz i'm too ceebs to write it all out
^3}\,dx\\
\text{Let } u&=1-5x\\
\frac{du}{dx}&=-5\\
\implies dx&=-\frac{du}{5}\\
\int\,\frac{1}{\left(1-5x\right)^3}\,dx&=-\int\,u^{-3}\,\frac{du}{5}\\
&=-\frac{1}{5}\int u^{-3}\,du\\
&=-\frac{1}{5}\left(\frac{u^{-2}}{2}\right) + C\\
&=-\left(-\frac{u^{-2}}{10}\right)+C\\
&=\frac{1}{10\left(1-5x\right)^2}+C
\end{align*}
)
u could write it like:
x=-u/5
\therefore dx=-du/5
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- Thread starter AsuTeksu
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u could write it like:
x=-u/5
\therefore dx=-du/5
Average Boreduser
Rising Renewal
alternatively u can skip like 8 of those lines if u consider 1-5x as xjust questioning if i can skip the
WeiWeiMan
Well-Known Member
as average boreduser said (kinda), your working is hella unnecessaryjust questioning if i can skip the
u can rewrite it as like
as u you mean ?
uh the qn asked for substitution (sorry should've clarified)as average boreduser said (kinda), your working is hella unnecessary
u can rewrite it as like
^3} \ text dx &=\int (1-5x)^{-3} \text dx \\
&= \(1-5x)^{-2} \cdot \frac{1}{-2} \cdot \frac{1}{-5} + C \\
&= \frac{1}{10(1-5x)^2} + C
\end{align})
Average Boreduser
Rising Renewal
naw it's my bad i should've clarified in the startoh fair enough then
Cute-Duckie
Active Member
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woah this is so cool can you make like a blank copy and share it with eveyrone when you're done?? this seems super useful
i think i'm pretty far from finishing it tho but i probably will
Cathode_RT
I'm so done with trimesters bruh
damn the 2023 stuff got archived
good luck you 2024 youngins
good luck you 2024 youngins
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WeiWeiMan
Well-Known Member
yooooo cathode rt
Cathode_RT
I'm so done with trimesters bruh
wassup
yolo tengo
mitsuya's fanboy
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nah it depends tho, like sum teachers get on your skin bc of 'not showing enough working' (my teacher) so some ppl have to do all the unnecessary working out
WeiWeiMan
Well-Known Member
unless the question states otherwise, the reverse chain rule is very much an accepted method
reverse chain rule is literally on the formula sheet as an integration method
upcoming/trying to do:
- colour matching tab/theme
- atar contrib thing (maybe, depends on how hard it is)
- number completed/completion rate 2
- mistake analytics (e.g silly, algebra, did not know how the fuck to approach, calculation/rounding) per subject (will show number of mistakes categorized by aforementioned types or more
- currently you have to retype the function/refresh page for it to update – might try to fix
- might turn into something like this:
but i'm kinda ceebs tbh
(should be able to put in unlimited subject based off how i made it)
edit: if i turn it into a menu it needs access to stuff and i dont feel comfortable with that
Last edited:
its_ace21
/æɪs/
i'm not getting 99.95 i don't try hard enough lol (and i don't need it)
xoNat
don't worry, be happy
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What do u wanna do again
if i did i would call bs; would actually be annoyed because i feel like a lot of people put in way more effort than me for like 1/2 of the results
i don't think i'd deserve anything above like 99.1 (even that's a stretch)surgery at tafe
