ᴊ ᴀ s ᴏ ɴ

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I'm deeply impressed by mathematics.


39 Answers

newest activity votes
10
How to simplify an expression like this: $(x^2+x^{-2}-2)^{1/2}$
7
Show that $d/dx (a^x) = a^x\ln a$.
7
Evaluating tetration to infinite heights (e.g., $2^{2^{2^{2^{.^{.^.}}}}}$)
7
Why does $\tan^{-1}(1)+\tan^{-1}(2)+\tan^{-1}(3)=\pi$?
6
$\frac{\mathrm d} {\mathrm dx}\sqrt{1/e^x}=$?
5
Help with following equality
4
Compute the limit $\sum_{n=1}^{\infty} \frac{n}{2^n}$
3
Make use of trigonometric identities to get the value of all 6 trigonometric functions of 165 degrees
3
How to find the roots of $x³-2$?
3
Equations - Solving for x
2
Solve for $x$, $3\sqrt{x+13} = x+9$
2
How to get started with this integral.
1
rewriting equation in terms of $y$
1
probability based on geometry
1
Find the minimum and the maximum values
1
Finding all the roots for $x^3+2x=0$
1
Evaluating $ \int_0^1 \int_y^1 \sqrt{1+x^2} dx dy $
1
Logarithm simplification
1
Evaluating $\frac{d^2y}{dx^2}$
1
Where is $f(x) = \log(5x^2-8x-4)+\sqrt{x-1}$ defined?
1
find derivative of $e^{3\sqrt{x}}$ using chain rule.
1
Integral $\int_ 0^{2\pi} \cos{\theta}^2 \sin{\theta}^2\; d\theta$
1
Integration of a trigonometric function
1
Simplifying roots
1
Prove $3^n = \sum_{k=0}^n \binom {n} {k} 2^k$
0
Please how to find indefinite integral $\int x^{x^x}\mathrm dx$?
0
find out the value of $\dfrac {x^2}{9}+\dfrac {y^2}{25}+\dfrac {z^2}{16}$
0
Solve equation $\sqrt{4t + 1} = 3 - 3t$
0
Recurrence equation
0
Proving that $\frac {\cos(π + x)\cos(-x)}{\cos(π-x)(\frac{π}{2}+x)} = \cot^2(x)$
1 2