P136，pp136

P136，pp136

#include<stdio.h>void sub(int x,int y,int *z){*z=y-x;}main(){int a,b,c;sub(10,5,&a);sub(7,a,&b);sub(a,b,&c);printf("%d,%d,%d\n",a,b,c);}

單項選擇p136

CBBAB,AA第八題忘了搭配。BD
 
數列各項(高中數學)P136

made : A1=a-d, A2=a,A3=a+d,A4==(a+d)*(1+d/a)
a+a+d=36
(a-d)+(a+d)*(1+d/a)=37
found out , a=16,d=4 so A1=12,A2=16,A3=20,A4=25

or a=20.25,d=-4.5;
so that : A1=24.75,A2=20.25,
A3=15.75,A4=12.25