WAP to calculate cos,acos,sin,asin,tan,Exponential & Log value

#include<math.h>

void main()

{

double a,c,s,as,t,e,l;

clrscr();

printf("Enter the value of a");

scanf("%lf",&a);

c=sin(a*3.14/180);

printf(" \nlf",c);

s=cos(a*3.14/180);

printf("\n%lf",s);

as=asin(a);

printf("\n%lf",as);

t=tan(a);

printf("\n%lf",t);

e=exp(a);

printf("\n%lf",e);

l=log(a);

printf("\n%lf",l);

getch();

}