Question

c语言程序这道题怎么做，求助大神

Answer 1

#include "stdio.h"
#include "math.h"
#define pi 3.1415926
int main(int argc,char *argv[]){
	double x,y,t=pi/2;
	printf("Input x(R:)...\nx=");
	scanf("%lf",&x);
	if(x<-t)
		y=5+x*x*x+x*x*x+cos(x)*3;
	else if(-t<=x && x<t)
		y=(x-1)/(x+2)*(x-1)/(x+2)*(x-1)/(x+2)+x+x+x+x+x;
	else
		printf("%g\n",y=sqrt(x+sin(x+x+x)));
	printf("y≈%g\n",y);
	return 0;
}

运行样例：