Deepak's user avatar
Deepak's user avatar
Deepak's user avatar
Deepak
  • Member for 9 years, 11 months
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  • Singapore
41 votes
Accepted

Derivative of a function with respect to another function.

28 votes
Accepted

It is possible to apply a derivative to both sides of a given equation and maintain the equivalence of both sides?

26 votes
Accepted

Simplifying $\cos(\arcsin x)$?

26 votes

Can we compute the area of a quadrilateral with one right angle when we only know the lengths of any three sides?

20 votes
Accepted

Methods for choosing $u$ and $dv$ when integrating by parts?

19 votes

How to prove that $2\sqrt{3}$ is greater than $\pi$

16 votes

Is it possible to have two triangles with equal sides but with different angles?

15 votes
Accepted

Prove that every odd prime number can be written as a difference of two squares.

15 votes
Accepted

A flower in a hexagon

15 votes

Does this prove that no sequential squares have a ratio of 2?

13 votes

Write this surd in its simplest form.

11 votes

Show that $\dfrac{2^p}{p}$ has remainder of $2$ for any prime $p \geq 3$

10 votes

Is it okay to reverse engineer proofs in homework questions?

9 votes

How would you show that $\sqrt{14+4\sqrt{10}} - \sqrt{14-4\sqrt{10}} = 4$?

9 votes

How do people perform mental arithmetic for complicated expressions?

9 votes
Accepted

Limit with sin indeterminate

9 votes

How many points are there on the globe where by walking one mile south, one mile east and one mile north you reach the place where you started?

9 votes

Proving that a complex number is real

9 votes

Is it possible to think of the number e as a fraction of pi?

8 votes

Partial Sums of Geometric Series

8 votes

What are the area of a triangle with side lengths $\tan(x)$, $\cos(x)$ and $\sin(x)$?

8 votes
Accepted

Function to grab specific digits from a number?

8 votes

$x^{10}+x^{11}+\dots+x^{20}$ divided by $x^3+x$. Remainder?

8 votes
Accepted

Does real*real*real... = imaginary? $x\cdot x\cdot x\cdot x\cdot x\ ...\ =\ i, x \in \mathbb{R}$

7 votes
Accepted

How do I evaluate the integral $\int\dfrac{1}{x^2+2}dx$?

7 votes

When can we apply the method of complexifying the integral.

7 votes
Accepted

Tricky trig question from GRE

7 votes

Seconds of a Clock

7 votes
Accepted

Find the last digit of the sum $1!+2!+3!+...+49!$

7 votes
Accepted

Prove that if you divide $10^n$ by $9$ then the remainder is $1$

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