... p:p); x1 = p/m; x2 = (float)p/m; x3 = (p +0.5)/m; x4 = (int)(p+0.5)/m; printf("\n printf("\n printf("\n printf("\n printf("\n printf("\n printf("\n printf("\n printf("\n getch(); } a1 a2 a3 a4 a5 ... %0.5f (cach 1)", %0.5f (cach 2)", float cach1(float x,int n) { if (n == 0) return(1); return ( x * cach1(x,n-1)); } float cach2(float x, int n) { if (n == 0) return(1); if (( n % 2) == 0) return(cach2(x,n/2)*cach2(x,n/2)); ... nghiem(float a, float b, float c, float *x, float *y) { float d = b*b - 4*a*c; if (d...