Friday, 11 October 2013

Six Digit Natural Numbers

Find the number of 6 digit natural numbers where each digit appears at least twice. 
at
Labels: , , , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Define f:R→R by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \ 0, ...