Question

Proving/Disproving statements about connectedness and convexity

score 48 · Answer 1 · 2020-01-14 15:47:50

48

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Proving/Disproving statements about connectedness and convexity

Published on 14 Jan 2020 - 15:47

score 363 · Answer 2 · 2020-01-14 17:11:38

363

Views

Find locus of point of intersection of $x+2y+\lambda(x-2y)=0$, $x+y-2+\beta(x-2)=0$, if these are always perpendicular to each other.

Published on 14 Jan 2020 - 17:11

score 47 · Answer 3 · 2020-01-14 20:42:10

47

Views

Find the error in my proof - Taylor's theorem

Published on 14 Jan 2020 - 20:42

score 941 · Answer 4 · 2026-03-29 23:58:45

941

Views

A triangle whose only lattice points are exactly its vertices has area $1/2$. Help formalize my proof?

Published on 29 Mar 2026 - 23:58

score 197 · Answer 5 · 2026-03-27 04:57:12

197

Views

Baldi - Stochastic Calculus - Show a stopping time as a.s. finite

Published on 27 Mar 2026 - 4:57

score 177 · Answer 6 · 2020-01-15 02:29:11

177

Views

Proof explanation in Theorem 4.23, Hatcher's Algebraic Topology

Published on 15 Jan 2020 - 2:29

score 399 · Answer 7 · 2026-03-29 19:11:21

399

Views

Solution verification: $\lim_{x\to 0}\frac{e^{2\sin x}\cosh x-1}{\sqrt[3]{x(\cosh x-\cos x)}}$

Published on 29 Mar 2026 - 19:11

score 212 · Answer 8 · 2020-01-15 07:11:22

212

Views

Proving a solution doesn't exist of a DE

Published on 15 Jan 2020 - 7:11

score 43 · Answer 9 · 2020-01-15 13:34:13

43

Views

can I use a sequence to determine function limit

Published on 15 Jan 2020 - 13:34

score 1.1k · Answer 10 · 2020-01-15 16:27:35

1.1k

Views

A positive number has a positive multiplicative inverse

Published on 15 Jan 2020 - 16:27

score 71 · Answer 11 · 2020-01-15 17:27:15

71

Views

What properties does $A\in M_n(\Bbb F),n\geqslant2\ \ $ have if $\operatorname{rank}(A)=\det(A)$?

Published on 15 Jan 2020 - 17:27

score 92 · Answer 12 · 2026-03-17 18:15:52

92

Views

Construct a deterministic finite machine for the language $(01)^*$

Published on 17 Mar 2026 - 18:15

score 43 · Answer 13 · 2020-01-15 18:17:05

43

Views

Prove that: $\int_a^bf(x)dx = 2\int_{a}^{a+b\over 2}f(x)dx$ for a symmetric continuous function.

Published on 15 Jan 2020 - 18:17

score 87 · Answer 14 · 2020-01-15 20:47:45

87

Views

Properties of semi inner product space by integration against weight function

Published on 15 Jan 2020 - 20:47

score 288 · Answer 15 · 2020-01-15 20:59:09

288

Views

Proving extension given by Hahn-Banach theorem is not generally unique

Published on 15 Jan 2020 - 20:59

List Question

Proving/Disproving statements about connectedness and convexity

Find locus of point of intersection of $x+2y+\lambda(x-2y)=0$, $x+y-2+\beta(x-2)=0$, if these are always perpendicular to each other.

Find the error in my proof - Taylor's theorem

A triangle whose only lattice points are exactly its vertices has area $1/2$. Help formalize my proof?

Baldi - Stochastic Calculus - Show a stopping time as a.s. finite

Proof explanation in Theorem 4.23, Hatcher's Algebraic Topology

Solution verification: $\lim_{x\to 0}\frac{e^{2\sin x}\cosh x-1}{\sqrt[3]{x(\cosh x-\cos x)}}$

Proving a solution doesn't exist of a DE

can I use a sequence to determine function limit

A positive number has a positive multiplicative inverse

What properties does $A\in M_n(\Bbb F),n\geqslant2\ \ $ have if $\operatorname{rank}(A)=\det(A)$?

Construct a deterministic finite machine for the language $(01)^*$

Prove that: $\int_a^bf(x)dx = 2\int_{a}^{a+b\over 2}f(x)dx$ for a symmetric continuous function.

Properties of semi inner product space by integration against weight function

Proving extension given by Hahn-Banach theorem is not generally unique

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