Question

Solve $(1-x)y''+xy'-y=-(x-1)^2$

score 205 · Answer 1 · 2026-04-16 02:01:21

205

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Solve $(1-x)y''+xy'-y=-(x-1)^2$

Published on 16 Apr 2026 - 2:01

score 154 · Answer 2 · 2026-04-10 13:12:36

154

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Finding coproducts in $\mathbf{Grp}$ using presentations

Published on 10 Apr 2026 - 13:12

score 175 · Answer 3 · 2026-04-15 06:11:32

175

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Explanation on the Proof of $W(t)=W(t_0)\exp\left(\int_{t_0}^{t} \text{tr}(\underline{A}(s)) \ ds\right)$

Published on 15 Apr 2026 - 6:11

score 228 · Answer 4 · 2026-05-16 04:18:06

228

Views

Prove that $(x + y + z)^3 + 9xyz \ge 4(x + y + z)(xy + yz + zx)$ where $x, y, z \ge 0$.

Published on 16 May 2026 - 4:18

score 377 · Answer 5 · 2026-05-16 14:44:24

377

Views

Uniqueness of completion of a metric space

Published on 16 May 2026 - 14:44

score 60 · Answer 6 · 2026-04-10 17:10:01

60

Views

Group theory subgroups problem

Published on 10 Apr 2026 - 17:10

score 112 · Answer 7 · 2026-05-05 06:50:23

112

Views

Solution of pde $\frac{\partial z}{\partial x}\cdot \frac{\partial z}{\partial y}=1$ with $z(0,0)=0$

Published on 05 May 2026 - 6:50

score 69 · Answer 8 · 2026-04-16 04:21:52

69

Views

Snails and Sums

Published on 16 Apr 2026 - 4:21

score 400 · Answer 9 · 2026-04-15 04:30:37

400

Views

Proof: The point $\mathbf{x}$ lies on the line $\mathbf{l}$ if and only if $\mathbf{x}^T \mathbf{l} = 0$.

Published on 15 Apr 2026 - 4:30

score 67 · Answer 10 · 2026-04-16 07:25:25

67

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Proof that for binary relation $ R \circ (S \cup T) \subseteq (R \circ S) \cup (R \circ T) $

Published on 16 Apr 2026 - 7:25

score 220 · Answer 11 · 2026-04-14 09:14:26

220

Views

Prob. 5, Sec. 6.2, in Bartle & Sherbert's INTRO TO REAL ANALYSIS, 4th ed: How to show this function is strictly decreasing using derivative

Published on 14 Apr 2026 - 9:14

score 61 · Answer 12 · 2026-04-09 20:57:23

61

Views

Alternate Proof of Kuratowski Complement-Closure Theorem

Published on 09 Apr 2026 - 20:57

score 66 · Answer 13 · 2026-04-10 06:12:42

66

Views

proof of inequality with absolute-value and function

Published on 10 Apr 2026 - 6:12

score 215 · Answer 14 · 2026-05-11 05:10:19

215

Views

Implicit function theorem-critical points

Published on 11 May 2026 - 5:10

score 188 · Answer 15 · 2026-04-13 22:24:37

188

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Prove that $\mathbb{Z}[i]/\langle a+ib\rangle$ is isomorphic to $\mathbb{Z}/\langle a^2+b^2\rangle$ where $a, b$ are relatively prime

Published on 13 Apr 2026 - 22:24

List Question

Solve $(1-x)y''+xy'-y=-(x-1)^2$

Finding coproducts in $\mathbf{Grp}$ using presentations

Explanation on the Proof of $W(t)=W(t_0)\exp\left(\int_{t_0}^{t} \text{tr}(\underline{A}(s)) \ ds\right)$

Prove that $(x + y + z)^3 + 9xyz \ge 4(x + y + z)(xy + yz + zx)$ where $x, y, z \ge 0$.

Uniqueness of completion of a metric space

Group theory subgroups problem

Solution of pde $\frac{\partial z}{\partial x}\cdot \frac{\partial z}{\partial y}=1$ with $z(0,0)=0$

Snails and Sums

Proof: The point $\mathbf{x}$ lies on the line $\mathbf{l}$ if and only if $\mathbf{x}^T \mathbf{l} = 0$.

Proof that for binary relation $ R \circ (S \cup T) \subseteq (R \circ S) \cup (R \circ T) $

Prob. 5, Sec. 6.2, in Bartle & Sherbert's INTRO TO REAL ANALYSIS, 4th ed: How to show this function is strictly decreasing using derivative

Alternate Proof of Kuratowski Complement-Closure Theorem

proof of inequality with absolute-value and function

Implicit function theorem-critical points

Prove that $\mathbb{Z}[i]/\langle a+ib\rangle$ is isomorphic to $\mathbb{Z}/\langle a^2+b^2\rangle$ where $a, b$ are relatively prime

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