CobraCobra
Reputation
2,265
Top tag
Next privilege 2,500 Rep.
Create tag synonyms
4 24
Impact
~16k people reached

 11 Solving a cubic equation involving trigonometric functions 7 $2^x+7^y=19^z$ has no solution in positive integers $x$, $y$, $z$ 7 What is the division of $1/0$? 5 How do you find the height of a triangle given $3$ angles and the base side? Image given. 3 How to integrate $\int_{-\pi/4}^{\pi/4} (\cos(t) + \sqrt{1 + t^2}\cos^3(t)\sin^3(t))\;\mathrm{d}t$.

### Reputation (2,265)

 +25 Finding value of given integral +30 How to integrate $\int_{-\pi/4}^{\pi/4} (\cos(t) + \sqrt{1 + t^2}\cos^3(t)\sin^3(t))\;\mathrm{d}t$. +30 Inequalities Theorem Proof +5 The equation $\phi (x)=n$ has only a finite number of solutions.

### Questions (31)

 19 Prove: $\sin (\tan x) \geq {x}$ 11 Maximize $\int_0^1 x^2f(x)~\mathrm dx - \int_0^1 xf(x)^2~\mathrm dx$ among continuous $f:[0,1]\to\Bbb R$ 10 Which is greater, $300 !$ or $(300^{300})^\frac {1}{2}$? 9 Period of $f(2x+3)+f(2x+7)=2$ 9 Computing $\int {\dfrac{\csc^{2014}x-2014}{\cos^{2014}x} dx}$

### Tags (64)

 24 trigonometry × 7 9 number-theory × 5 15 algebra-precalculus × 10 8 geometry × 6 12 cubic-equations × 2 8 triangle × 2 9 calculus × 11 7 inequality × 7 9 sequences-and-series × 7 7 elementary-number-theory × 4

### Accounts (12)

 Mathematics 2,265 rep 424 Chemistry 277 rep 314 Stack Overflow 120 rep 6 Physics 106 rep 5 Super User 101 rep 2