Choose $r_i,b,z$ such that $\frac{\|x_1-y\|^2}{\sigma_1^2}+\frac{\|x_2-y\|^2}{\sigma_2^2}=\left\|\frac{x_1}{r_1}-\frac{x_2}{r_2}\right\|^2+b\|y-z\|^2$

score 1.7k · Answer 6 · 2026-04-16 09:14:03

1.7k

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Is there a name for the number of ones in a binary vector?

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score 113 · Answer 7 · 2026-04-11 03:35:51

113

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score 31 · Answer 8 · 2026-04-14 16:44:31

31

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score 120 · Answer 9 · 2026-04-14 20:13:24

120

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score 24 · Answer 10 · 2026-04-13 06:51:03

24

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Show that there exists exactly one $l_A$-invariant $K$-subspace of dimension $1$ in $K^2$.

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score 80 · Answer 11 · 2026-05-15 21:50:15

80

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$u_1, u_2$ is linearly independent if and only if the family $u_1 + u_2, u_1 − u_2$ is linearly independent.

Published on 15 May 2026 - 21:50

score 45 · Answer 12 · 2026-04-09 05:53:35

45

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score 63 · Answer 13 · 2026-04-17 11:09:56

63

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score 42 · Answer 14 · 2026-04-13 21:10:23

42

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score 435 · Answer 15 · 2026-04-12 10:05:56

435

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$U$ be the set of all sequences of real numbers $(x_n)_{n\in \mathbb{N} }$ with $x_n + x_{n+1} = x_{n+2}$ find $\dim(U)$ and find a basis

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Choose $r_i,b,z$ such that $\frac{\|x_1-y\|^2}{\sigma_1^2}+\frac{\|x_2-y\|^2}{\sigma_2^2}=\left\|\frac{x_1}{r_1}-\frac{x_2}{r_2}\right\|^2+b\|y-z\|^2$

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Show that there exists exactly one $l_A$-invariant $K$-subspace of dimension $1$ in $K^2$.

$u_1, u_2$ is linearly independent if and only if the family $u_1 + u_2, u_1 − u_2$ is linearly independent.

How do you find the components of another vector given the components of a known vector and the angle between them in 3D?

Finding parametric form of a circle that is in a plane $x-2y+z=0$ with radius 1 and center at origin

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