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D.C. the III

A student of life on the infinite path learning, enjoying and creating from this beautiful art called mathematics.

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Top Questions

Idea behind "reparameterization hiding a corner" in single variable calculus

real-analysis calculus parametrization asked Aug 15, 2020 at 22:47

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Suppose $p, p+2, p+4$ are prime numbers. Prove that $p = 3$ not using division algorithm.

elementary-number-theory prime-numbers asked Aug 30, 2015 at 21:53

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Is the set of periodic functions from $\mathbb{R}$ to $\mathbb{R}$ a subspace of $\mathbb{R}^\mathbb{R}$?

linear-algebra abstract-algebra proof-explanation asked Apr 29, 2016 at 17:03

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Show $\lim_{h \to \ 0} \frac{f(x + 2h) - 2f(x+h) + f(x)}{h^{2}} = f''(x)$ Proof verification

real-analysis limits proof-verification asked May 5, 2019 at 20:31

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Is there a difference between ignorability and strong ignorability?

experiment-design treatment-effect observational-study asked Feb 15, 2022 at 6:36

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Step in proof on Riemann Sums from Spivak Calculus.

real-analysis calculus riemann-integration asked Aug 16, 2020 at 22:31

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Why won't my title information show up?

titles asked Feb 14, 2015 at 3:16

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Find the vector given the dot product and cross product of a set of vectors.

real-analysis linear-algebra multivariable-calculus determinant inner-products asked Jan 21, 2021 at 23:23

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Showing $\lim_{h \to 0} \frac{\|a+h\| - \bigg(\|a\| + \frac{a\cdot h}{\|a\|}\bigg)}{\|h\|} = 0$

real-analysis multivariable-calculus asked Jun 12, 2021 at 6:13

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Prove or disprove: there exists a basis $p_0, p_1, p_2, p_3 \in P_3(F)$ such that none of the polynomials $p_0, p_1, p_2, p_3$ has degree 2

linear-algebra asked Jun 2, 2016 at 21:43

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