1
$\begingroup$

In how many ways can one put 2 distinguishable objects on a 4x4 board?

In how many ways can one put them so that when you rotate the board to 90 degrees the positions of objects is preserved?

  • 0
    Welcome to math.SE! There's no need to repeat the tags in the title; the tags are displayed wherever the title is displayed. The tags are for general fields, whereas the title should be a more specific summary of the question.2012-10-14

1 Answers 1