...输出X的值、X的平方根、X的平方、X的立方根和X的立方答:double x;double v1,v2,v3,v4;printf("Please input x:\n");scanf("%lf",&x);printf("Your input is: %g\n",x);v1=sqrt(x);v2=x*x;v3= pow(x,1.0/3);v4 = v2*x;printf("The results are: %lf %lf %lf %lf\n",v1,v2,v3,v4);return 0;} 例如,输入8 得:The ...