A program that read any angle θ and display sec(θ) in C.

#include<stdio.h>
#include<conio.h>
#include<math.h>

void main()
{
    int angle;
    float v;
    clrscr();
    printf("Enter any angle = ");
    scanf("%d",&angle);
    if(angle==90)
    printf("\nSec(90) = Undefined");
      else
      {
       v=1/(cos(angle*M_PI/180));
       printf("\nSec(%d) = %.2f",angle,v);
    }
    getch();
}

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Copy & paste this code in your TC & run, then you will get output.......
If you have any problem please comment below.........