Considere la sucesión (dk)k>=1 definida por d1 = 9/10 ; d2 = 10/11 ; dk = d(k-1) * d(k-2); k >= 3: Usando inducción matemática fuerte demuestre que 0 < dn <= 1; Para todo n>=1:

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Find the multiplicative inverse of 8-12i

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?