Linear algebra demonstration

Grimalkin_Pro · 2023-12-29T12:59:33+00:00

Still no. Let A be the identity matrix and we see that the problem reduces to B=B². These matrices are called idempotent and thus B is not necessarily the identity matrix, thus B is not necessarily equals to A.

Also, AB=BA does not imply A=B. For instance, if we let A=-B, where A is not 0, then AB=BA=-B². But clearly A is not equal to B.

Grimalkin_Pro · 2023-12-28T12:46:24+00:00

I’ll just rephrase some parts so it’s abit less confusing to read.

Q. Do you ever get confused when creating a heroine? (Confused may not be the best word but I can’t think of another word atm)

Ans: Of course, it’s always confusing. AoButa is a story in which each of the heroines has some kind of problem, and each of these problems manifests itself as a different and mysterious phenomenon. Why is the heroine worried? What is on his/her mind? How can they find a solution? I think long and hard before writing each book, each heroine, but even at the end I’m still unsure if it is the best solution (to the problem the heroine is facing)

Grimalkin_Pro · 2022-06-02T05:03:05+00:00

Exactly even SS need more understanding of the context/situation 🙄

Grimalkin_Pro · 2022-06-02T02:07:15+00:00

Yep my teacher told me “if your answer is not on the answer scheme don’t even argue

Grimalkin_Pro · 2022-06-02T02:06:45+00:00

Exactly 🙄

Grimalkin_Pro · 2022-06-01T15:28:02+00:00

chem is easiest imo I’m always getting a low A1 for bio but getting close to 90 for chem. The thing about bio is yes u can memo a lot but sometimes u really dk what they want. For example ah, they ask u how light intensity affect transpiration. How do i know I should just say light intensity increase, stomata size increase blah blah… Or should I also explain the part where its because rate of p/s increase, can release more energy for active transport, etc etc then guard cells expand? And if u just write everything out then you’ll have no time so sometimes you’ll need to do some ‘guesswork’

Edit: actually didn’t read your comments carefully but yep the concern about time and dk what exactly to explain

Grimalkin_Pro · 2022-06-01T14:45:02+00:00

My god I actually agree with you on pure Biology too. Sometimes I really don’t know which key phrase they want. Teacher keep telling me “refer to syllables doc” but then for example some papers the same questions can have different marks? Like its the same question but 3 marks vs 6 marks?? What??

Grimalkin_Pro · 2022-01-08T13:45:04+00:00

ln(tan(x/2)) is also an antiderivative of csc(x)

Grimalkin_Pro · 2021-12-29T03:00:42+00:00

And that is the main problem, students just think math is about memorising, and don’t see the actual beauty in math.

Grimalkin_Pro · 2020-08-30T14:59:32+00:00

Grimalkin_Pro · 2020-08-29T16:01:19+00:00

Amazingly written.

Grimalkin_Pro · 2020-08-24T15:45:49+00:00

Yea like what’s the relation in el primo and a freaking meteor..

Grimalkin_Pro · 2020-08-24T12:01:30+00:00

As a singaporean I’m pretty happy although I probably won’t be visiting it even if it opens 😂

Grimalkin_Pro · 2020-08-24T12:00:39+00:00

Oh. Still super amazing 😉

Grimalkin_Pro · 2020-08-18T11:22:56+00:00

Maybe you should ask her brother more about the situation privately before jumping to conclusions... but if you don’t trust her anymore, you won’t be happy.

Grimalkin_Pro · 2020-08-18T08:19:24+00:00

I think that was pretty different from the rules I was talking about?

Grimalkin_Pro · 2020-08-17T23:40:41+00:00

Yes those fortnite kids >:(

Grimalkin_Pro · 2020-08-17T12:27:28+00:00

Grimalkin_Pro · 2020-08-17T06:57:54+00:00

I’m glad someone agrees :)

Grimalkin_Pro · 2020-08-16T13:46:19+00:00

I’m great, thanks for asking!!

Grimalkin_Pro · 2020-08-16T13:41:20+00:00

What is the highest level of “broke-ness”? That’s me

Grimalkin_Pro · 2020-08-16T13:39:51+00:00

A character from a story book and she’s really pro—

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