Please help!
Here is the question in an image file:
http://img171.imageshack.us/img171/4391/screenshot20120522at347.png
Here is the question in an image file:
http://img171.imageshack.us/img171/4391/screenshot20120522at347.png
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For the first one, c = 3 and n = 8.
For the second one n > 7
For the last one, n < 8 and c > 0
For the second one n > 7
For the last one, n < 8 and c > 0