Mathematics
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Lythia's user avatar
Lythia's user avatar
Lythia
  • Member for 9 years, 4 months
  • Last seen more than 6 years ago
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All Questions Answers
Score Newest
answer
21
Proof of $ |a-b| = |b-a| $
May 22, 2015
answer
14
Show that $B$ is invertible if $B=A^2-2A+2I$ and $A^3=2I$
Jul 29, 2015
answer
8
the gradient of the product of a scalar by a vector
Sep 1, 2015
answer
6
Gradient in a rotated reference frame
Mar 8, 2015
answer
4
If a matrix $A^2$ is invertible, is $A^3$ invertible?
Mar 14, 2016
answer
2
Vector calculus - Material derivative in spherical coordinates...
Oct 10, 2015
answer
2
For complex z showing $\cos(z+ \pi) = -\cos(z)$
Sep 30, 2015
answer
2
Why doesn't quadratic formula lead to a the correct factored form of the original equation?
Sep 1, 2015
answer
2
Derivative of $\frac{x}{\|x\|}$ w.r.t. x where $x\in \mathbb{R}$ ($x \neq \theta_n$)
Sep 1, 2015
answer
2
matrix multiplication manipulation
Jul 28, 2015

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