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OnceUponACrinoid
  • Member for 7 years, 2 months
  • Last seen more than 1 year ago
4 votes
Accepted

Determine if first and second partial derivatives are positive, negative or zero based on level curves

3 votes

If $G = \langle a\rangle$ and $b$ $\in$ $G$, the order of $b$ is a factor of the order of $a$

3 votes

Curve of intersection of two surfaces

3 votes

Visual representation of matrices

2 votes
Accepted

Tax difference on dollar amounts?

2 votes

quadratic equation plot investigation

2 votes

Is this a valid operation or an abuse of notation?

2 votes

Rotation Around the Y-Axis

2 votes

Calculate the fourth proportional of the given numbers (Grade 7)

2 votes
Accepted

Finding the Volume of a solid - Application of Integrals - Exercise that is not clear to understand

2 votes
Accepted

Locus of a point on a sliding rod leaned against a wall

2 votes

Given $1\leq a<b\leq2$, Prove $\frac{log(b)-log(a)}{b^2-a^2}<\frac{1}{2}$

1 vote

Proving $\tan A=\frac{1-\cos B}{\sin B} \;\implies\; \tan 2A=\tan B$

1 vote
Accepted

T o' clock at $T^2$ Miles

1 vote

Simplify this complex number

1 vote

Finding Imaginary Values of a Degree 6 Polynomial

1 vote
Accepted

Convert the equation into an equivalent system of first order differential equations.

1 vote
Accepted

Notation in Group Theory: Subgroup generated by $x^n$

1 vote

What is the function for a 'fractal sine wave'?

1 vote
Accepted

Providing initial conditions for differential equation? - Phase portrait

1 vote
Accepted

metric spaces and density

1 vote
Accepted

3D geometry (a bit thoughtful)

1 vote
Accepted

Evaluate $\lim_{n\to\infty}(1+x)(1+x^2)\cdots(1+x^{2n}),|x|<1$

1 vote
Accepted

Ordering relations smallest/minimal elements definitions

0 votes

What is the difference between necessary condition & sufficient condition?

0 votes

If we have the transformation of 2 vectors, how can we define the transformation?

0 votes
Accepted

Computing the partial derivatives of a function defined as another compound function

0 votes
Accepted

Having the height, a side length, and an angle of an acute triangle, how the triangle solved?

0 votes

Collinearity of 3 points using linear operations

0 votes

What is the name of this algebraic property?