Length of the arc y= sqrt(2-x^2) from x=0 to x=1
![](https://i.ytimg.com/vi/Lwmn-ZTCBMI/mqdefault.jpg)
13:53
int[sin^4(x)]
![](https://i.ytimg.com/vi/tianj8l9Q40/mqdefault.jpg)
13:44
Integrate (sin^k( x) /(sin^k x + cos^k(x)] from 0 to half-pi
![](https://i.ytimg.com/vi/4JIjqah2ZNI/mqdefault.jpg)
16:32
Arclentgh of y= sqrt(x-x^2) + arccos(sqrtx)
![](https://i.ytimg.com/vi/xt9_h1_gRTA/mqdefault.jpg)
16:30
Verify by integration that the perimeter of a circle is 2 (pi) r
![](https://i.ytimg.com/vi/qvgdAKFL6N0/mqdefault.jpg)
6:08
Trig Limits & the Squeeze Theorem
![](https://i.ytimg.com/vi/1afiw6VO_Dk/mqdefault.jpg)
15:00
integrate sqrt(x+1) over sqrt(x+2)
![](https://i.ytimg.com/vi/bEfyGOvqVlo/mqdefault.jpg)
3:06:58
Lo mejor del piano clásico: Mozart, Bach, Chopin, Debussy, Liszt, Beethoven...
![](https://i.ytimg.com/vi/I5oxtZorljU/mqdefault.jpg)
13:14