How to calculate this function?

Question

f(x,y)= x*cos(y)        y in degree

Answer 1

import math.h

float f(int x,int y){

return x*cosine(y)

}

Comments

#include <stdio.h>

#include <math.h>

int main()

{float b;


 float f(int x,int y){
  return x*cos(y);
}

  b=f(1,0);
  printf("%f",b);

}