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Vote summary for YorkTech‭

A daily summary of votes received for posts.

Nov 2, 2023: -2

+0

−2

Before squaring $\sin x = \cos x$, what conditions shall I set to eliminate extraneous solutions?

Question Q&A

Nov 1, 2023: -4

+0

−2

$\left(\forall \varepsilon >0: |a-b| < \varepsilon\right) \iff a=b$ vs. $\left(\forall \varepsilon > 0: a \le b + \varepsilon \right) \iff a \le b$

Question Q&A

+0

−2

Before squaring $\sin x = \cos x$, what conditions shall I set to eliminate extraneous solutions?

Question Q&A

Oct 12, 2023: -2

+0

−1

Who can, or ought, NOT study math, particularly after high school?

Question Q&A

+1

−0

Do undergraduates struggle with delta-epsilon definitions, purely because of ignorance of Linguistic Syntax?

Question Q&A

+0

−1

How can you de-mystify the trick of multiplying $\color{red}{\frac{\cos}{\cos}}$, to integrate $\sec$, to 17 year olds?

Question Q&A

+1

−0

Do high school students fail to intuit why > can transmogrify into an =, for similar cognitive reasons as why 0.999 = 1?

Question Q&A

+0

−2

How can 15 year old students intuit why > can transmogrify into an =, vice versa?

Question Q&A

Oct 11, 2023: -16

+0

−4

Who can, or ought, NOT study math, particularly after high school?

Question Q&A

+0

−1

Why do analysis books fail to standardize, or teach, the K-$\epsilon$ principle?

Question Q&A

+0

−2

Do undergraduates struggle with delta-epsilon definitions, purely because of ignorance of Linguistic Syntax?

Question Q&A

+0

−2

How can you de-mystify the trick of multiplying $\color{red}{\frac{\cos}{\cos}}$, to integrate $\sec$, to 17 year olds?

Question Q&A

+0

−2

Do high school students fail to intuit why > can transmogrify into an =, for similar cognitive reasons as why 0.999 = 1?

Question Q&A

+0

−2

How can 15 year old students intuit why > can transmogrify into an =, vice versa?

Question Q&A

+0

−2

How to motivate $x^n-y^n \equiv (x-y)(x^{n-1}+x^{n-2}y+...+xy^{n-2}+y^{n-1})$, to 16 year olds?

Question Q&A

+0

−1

Why can't we factor out (a+b) from $x^n + y^n$ FOR ALL real n, like $x^n - y^n$? Explain at the level of 15 year olds?

Question Q&A