c program for sine inverse

#include<stdio.h>
#include<conio.h>
#include<math.h>
#define LIMIT 55

main(){
       double i,up=1,down=2,nm,dm,x,sum,term;
       
      
      
       printf("Enter the value of x\t");
       scanf("%lf",&x);
      
       sum=x;
      
       for(i=3;i<=LIMIT;i=i+2){
                            nm=pow(x,i);
                            dm=i;
                           
                            term=(up*nm)/(down*dm);
                           
                            sum=sum+term;
                           
                            up=up+2;
                            down=down+2;
                            }
       sum=sum*180/3.1416;
      
       printf("sin inverse(%lf)=%f",x,sum);
      
                           
                               
                          
      
      
     
                                                
                                               
                                                
                  
      getch();
      }