Question

Solution verification: given the point $T$ and the line $p$, find the distance between their orthogonal projections onto the plane $\pi$.

score 186 · Answer 1 · 2026-04-14 19:25:28

186

Views

Solution verification: given the point $T$ and the line $p$, find the distance between their orthogonal projections onto the plane $\pi$.

Published on 14 Apr 2026 - 19:25

score 866 · Answer 2 · 2026-04-14 14:07:17

866

Views

Show that the linear transformation $T$ is continuously differentiable at every point, and in fact $T'(x) = T$ for every $x$.

Published on 14 Apr 2026 - 14:07

score 119 · Answer 3 · 2026-04-15 12:27:29

119

Views

For any $n ≥ 5,$ the value of $1+ \frac{1}2 + \frac{1}3+···+\frac{1}{2^n −1}$ lies between

Published on 15 Apr 2026 - 12:27

score 47 · Answer 4 · 2026-04-17 08:44:52

47

Views

Is it correct to state that $\langle x(t),x(t)\rangle' = 2\langle x'(t),x(t)\rangle$ for an arbitrary inner product?

Published on 17 Apr 2026 - 8:44

score 351 · Answer 5 · 2026-04-15 10:24:12

351

Views

is ∀x∃y(Lxy) and ∃x∀yLyx provable from each other?

Published on 15 Apr 2026 - 10:24

score 3.9k · Answer 6 · 2026-04-17 05:28:30

3.9k

Views

Evaluate the integral $\int_{|z-1|=2} \frac{1}{z^2 - 2i} dz$

Published on 17 Apr 2026 - 5:28

score 170 · Answer 7 · 2026-04-15 22:31:53

170

Views

At which values of $x_0$ does $\lim\limits_{x \rightarrow x_0} g(x)$ exist?

Published on 15 Apr 2026 - 22:31

score 50 · Answer 8 · 2026-04-12 20:05:16

50

Views

Prove that composing a measurable function with a continuous function results in a measurable function

Published on 12 Apr 2026 - 20:05

score 43 · Answer 9 · 2026-04-11 19:37:19

43

Views

General solution of a wave-like PDE

Published on 11 Apr 2026 - 19:37

score 68 · Answer 10 · 2026-04-14 10:21:18

68

Views

How do the Averages Work?

Published on 14 Apr 2026 - 10:21

score 38 · Answer 11 · 2026-04-10 23:25:20

38

Views

Limits: Epsilon and Delta questions on proving limits

Published on 10 Apr 2026 - 23:25

score 38 · Answer 12 · 2026-04-16 14:25:22

38

Views

$\alpha\in L$ algebraic over $K$ implies $\beta\in L$ algebraic over $K$ iff $\beta$ algebraic over $K(\alpha)$.

Published on 16 Apr 2026 - 14:25

score 1.1k · Answer 13 · 2026-04-11 04:21:15

1.1k

Views

Every nonzero homomorphism of a field to a ring is injective?

Published on 11 Apr 2026 - 4:21

score 108 · Answer 14 · 2026-04-14 07:29:15

108

Views

Discrete Mathematics - Trees

Published on 14 Apr 2026 - 7:29

score 162 · Answer 15 · 2026-04-14 00:20:49

162

Views

Another proof by contradiction $\sqrt{2}$ is irrational.

Published on 14 Apr 2026 - 0:20

List Question

Solution verification: given the point $T$ and the line $p$, find the distance between their orthogonal projections onto the plane $\pi$.

Show that the linear transformation $T$ is continuously differentiable at every point, and in fact $T'(x) = T$ for every $x$.

For any $n ≥ 5,$ the value of $1+ \frac{1}2 + \frac{1}3+···+\frac{1}{2^n −1}$ lies between

Is it correct to state that $\langle x(t),x(t)\rangle' = 2\langle x'(t),x(t)\rangle$ for an arbitrary inner product?

is ∀x∃y(Lxy) and ∃x∀yLyx provable from each other?

Evaluate the integral $\int_{|z-1|=2} \frac{1}{z^2 - 2i} dz$

At which values of $x_0$ does $\lim\limits_{x \rightarrow x_0} g(x)$ exist?

Prove that composing a measurable function with a continuous function results in a measurable function

General solution of a wave-like PDE

How do the Averages Work?

Limits: Epsilon and Delta questions on proving limits

$\alpha\in L$ algebraic over $K$ implies $\beta\in L$ algebraic over $K$ iff $\beta$ algebraic over $K(\alpha)$.

Every nonzero homomorphism of a field to a ring is injective?

Discrete Mathematics - Trees

Another proof by contradiction $\sqrt{2}$ is irrational.

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