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StackTD
  • Member for 9 years, 9 months
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63 votes

What is the reasoning behind this exponents question?

43 votes

Notation for functions

38 votes
Accepted

Matrix multiplication notation

37 votes
Accepted

WolframAlpha says limit exists when it doesn't?

23 votes
Accepted

Why can we resolve indeterminate forms?

22 votes
Accepted

Can I bring the variable of integration inside the integral?

21 votes

Can a bounded number sequence be strictly ascending?

19 votes

Is $\frac{1}{\sqrt{2}}$ a fraction or not?

19 votes
Accepted

Why aren't the functions $f(x) = \frac{x-1}{x-1}$ and $f(x) = 1$ the same?

16 votes
Accepted

A better way to evaluate a certain determinant

14 votes

General formula for the 1; 5; 19; 65; 211 sequence

14 votes
Accepted

How to quickly check if vectors are an orthonormal basis of a vector space?

13 votes
Accepted

What am I doing wrong in calculating the following limit?

13 votes

Which one is bigger: $9^{17}$ and $7^{19}$

12 votes

Do all odd functions have symmetric zeros?

12 votes
Accepted

Integral of $e^{x^3+x^2-1}(3x^4+2x^3+2x)$

12 votes
Accepted

Does the series $\sum_{n=1}^{\infty} \frac{\sqrt{n+1}-\sqrt{n}}{n}$ converge?

11 votes

Evaluate definite integral$\int_{\frac{\pi}{6}}^{\frac{\pi}{3}}\frac{\sin t +\cos t}{\sqrt{\sin 2t}}dt$.

11 votes
Accepted

How do we normalize vectors to have a unit length equal to one?

10 votes
Accepted

Quick and easy way to show whether a matrix is injective / surjective?

10 votes

derivative of $\left(\frac{\ 1}{3x}\right)$ using limit definition.

10 votes
Accepted

Definition of $\frac{dy}{dx}$ where we cannot write $y=f(x)$

10 votes

Why is $\lim_{x\to -\infty}\sqrt{x^2+5x+3}+x = \lim_{x\to -\infty}(-x)+x=\lim_{x\to -\infty}0 = 0$ not correct?

10 votes
Accepted

Finding $\lim_{n\rightarrow\infty }\frac{\frac{1}{2}+\frac{\sqrt 2}{3}+\dots+\frac{\sqrt n}{n+1}}{\sqrt n}$

10 votes
Accepted

Real Analysis Limits Question

9 votes
Accepted

How to integrate $\int_0^{2}\frac{1}{1+\sqrt{x+2}+\sqrt[3]{x+2}+\sqrt[6]{x+2}}\,dx$?

9 votes
Accepted

Extraneous and Missing Solution Confusion

9 votes

weird brackets in unit interval

9 votes

Can I subtract infinity from infinity?

9 votes
Accepted

How to evaluate $\sqrt {6\sqrt {6\sqrt{\cdots}}}$

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