1077

#include<stdio.h>#include<math.h>main(){int n;scanf("%d",&n);float x,y[n];int i;for(i=0;i<=n-1;i++){scanf("%f",&x);if(x<-2)y[i]=x*x-sin(x);else if(x<=2)y[i]=pow(2,x)+x;elsey[i]=sqrt(x*x+x+1);}for(i=0;i<=n-1;i++){printf("%.2f\n",y[i]);}}