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Chứng minh đẳng thức An Casi Thu Aug 18, 2011 9:14 pm
El Kun
Super Moderator
Chứng minh đẳng thức An Casi
- Code:
#include <stdio.h>
unsigned long vetrai(unsigned long n)
{
unsigned long tmp=0, i;
for (i=1; i<=n; i++)
tmp += i*i*i*i;
return tmp;
}
unsigned long vephai(unsigned long n)
{
unsigned long tmp;
tmp = (long)6*n*n*n*n*n + (long)15*n*n*n*n + (long)10*n*n*n - n;
tmp = tmp / (long)30 ;
return tmp;
}
void main()
{
unsigned long tong1, tong2, n;
for (n=1; n<=50; n++)
{
tong1 = vetrai(n);
tong2 = vephai(n);
if (tong1 == tong2)
{
printf("\nSo %d thoa man dang thuc An Casi. ", n);
printf("Tong1 = %ld - Tong2 = %ld", tong1, tong2);
}
else
{
printf("\nSo %d khong thoa man dang thuc An Casi. ", n);
printf("Tong1 = %ld - Tong2 = %ld", tong1, tong2);
}
}
getch();
}
