Quality's user avatar
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Quality
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16 votes
Accepted

user friendly proof of fundamental theorem of calculus

5 votes

What is the meaning of $\mathbb{R}\setminus\{0\}$?

5 votes

If $ab | c$, does $a | c$?

4 votes

Is it still an n by n matrix if it's filled with all zeroes?

4 votes

What is some pure math news website by a publisher?

3 votes
Accepted

Composite function derivative/ Chain Rule

3 votes

Databases for perfect numbers

3 votes
Accepted

A point of infinite curvature on a curve

3 votes

How can we integrate $\frac{x^5}{x^7+1}$?

3 votes

Inner product space parallelogram law?

3 votes

How to prove that a function is not injective

3 votes

Finding derivative of $f(x)= \frac{2x^3-4x^2+3}{x^2}$

3 votes

Prove that if $a \mid bc$ then $a \mid b$ or $a \mid c$ for $a, b, c$ positive integers where a is not zero

3 votes
Accepted

Cannot understand how angle between two vectors is calculated

2 votes
Accepted

Please tell me where does $c_1\cos(\omega t) +c_2\sin(\omega t)$ come from in this context?

2 votes
Accepted

Matrix Multiplication Confusioned

2 votes

Can we add probabilities?

2 votes
Accepted

Prove that if u and v are vectors in $\mathbb{R}^n$, then $\langle u,v\rangle =1/4\|u+v\|^2-(1/4\|u-v\|^2)$

2 votes
Accepted

Finding bases for subspaces of $\mathbb R^3$ and extending them to bases of $\mathbb R^3$

2 votes
Accepted

Convergence of Taylor Series

2 votes

How to find matrix of orthogonal projection from gram-schmidt orthogonalization

2 votes
Accepted

Why is 'something per hectare' denoted with a negative exponent ( $ha^{-1}$)?

2 votes
Accepted

$\lim\limits_{x\to\infty}\frac{\log x}{\log 7x}$?

2 votes
Accepted

Simplifying trigonometric equations

2 votes

Why does dividing by zero give us no answer whatsoever?

1 vote

Does symmetry of a matrix imply orthogonally diagonalizable?

1 vote

How Do I solves these types of limits such as $\lim_{x\to\infty}\frac{7x-3}{2x+2}$

1 vote

calculate the limit of the function $f(ax)$

1 vote
Accepted

word problem speed and time

1 vote

Is this derivation of the Pythagorean identity correct?