Code Bai04

#include<stdio.h> void nhap(float &x, int &n)//Nhap hai so x va n { printf("\nNhap vao x = "); scanf("%f", &x); do { printf("\nNhap vao n = "); scanf("%d", &n); if (n<0) { printf("\nSo ban vua nhap khong hop le!"); printf("\nXIN VUI LONG NHAP LAI!"); } } while (n<0); } double Power(float &x, int &n)//Ham luy thua { double kq=1; int i; for (i=1;i<=n;i++) kq*=x; return kq; } long giaiThua(int p)//Ham giai thua { double kq=1; int i; for (i=1;i<=p;i++) kq*=i; return kq; } int main() { double s1=0,s2=1,kq; int n,i=1,n2=2; float x,tempx=0,temps=1.0; nhap(x,n); kq= Power(x,n); printf("\nKet qua x^n = %.2f",kq); // Tinh va xuat ket qua x^n printf("\n***********************************"); while (i<=n) { tempx=x+i; s1=s1+(Power(tempx,i))/(Power(temps,n2));//Tinh S1 temps++; i++; } printf("\nKet qua cua S1 = %.2f", s1);//Xuat kq S1 printf("\n***********************************"); for (i=1;i<=n;i++) s2=s2+(Power(x,i)/(giaiThua(i)));//Tinh S2 printf("\nKet qua cua S2 = %.2f", s2); //Xuat kq S2 return 0; }