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Definition of double covers
It's unusual that I have to ask for a definition on this site, but it in the context of spin structures, it seems common to talk about double covers ...
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What is a non degenerate function?
What is a non-degenerate function? Can this have different meanings depending on some context? For reference, this came up in this question: Number of ...
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Poincare dual of unit circle
I'm trying to self-study Differential Forms in Algebraic Topology by Bott and Tu. I've come across this exercise: Show that the closed Poincare ...
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Normal Groups and Quotient Groups
These concepts are currently confusing me. My reading first defined a normal subgroup as one that is the kernel of a group homomorphism. Then it introduce...
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What is the integral of a vector-valued function?
what does it mathematically mean an integral of a vector ? for example in physics we say that the impulse $\vec{I}$ is the time integral of force $\vec{f}...
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Express in x + iy form.
Could somebody please verify or help me along with my answers? Thank you. My updated work(maybe someone can help me a little more now):
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How to find the 5th degree Taylor polynomial about x = 0
Question f(x) = ln$\frac {1+x^2}{1-x}$ How to find the 5th degree Taylor polynomial of f(x) about x = 0 without finding all derivatives of ln$\frac {1+x^2...
Read Journal![Why is $\sin(4\pi/5)$ equal to $\sin(\pi/5)$ [closed]](https://ly.shilpakalanarail.gov.bd/uploads/why-is-sin-4-pi-5-equal-to-sin-pi-5-closed_720.jpg)
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Why is $\sin(4\pi/5)$ equal to $\sin(\pi/5)$ [closed]
I am trying to understand why $$\sin(4\pi/5) = \sin(\pi/5)$$ Is there any formula that could help me? Thank you
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What is the object on the front of Larson and Edwards' calculus and pre-calculus textbooks called?
There is this incredible glass figure on the front of my Calculus textbook, I searched online for what this figure is called and the formula for creating ...
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What is an "incongruent" solution?
For example, "Solve the congruence (if possible), listing all the incongruent solutions:" $$561x\equiv 3575\mod{1562}$$ I found $x\equiv 37+142t,\ 0\leq t...
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