Aychik

1 Questions
1 Answers

0

2723

2

+8

How many ways can n books be placed on k distinguishable shelves b) if no two books are the same, and the positions of the books on the shel

How many ways can n books be placed on k distinguishable shelves if no two books are the same, and the positions of the books on the shelves matter?

reinout-g ●●

Aychik May 25, 2014

+8

+5

Area and volume

The area A and the volume V of a truncated cube of edge length a are:

$A = 2\left(6+6\sqrt{2}+\sqrt{3}\right)a^2 \approx 32.4346644a^2$

$V = \frac{1}{3}\left(21+14\sqrt{2}\right)a^3 \approx 13.5996633a^3.$

AychikMay 25, 2014