Untitled

//1
#include <stdio.h>
#include <math.h>

int main()
{
	float sin = 0, x, S;
	int n = 0;
	scanf("%f", &x);
	while (n <= 10)
	{		
		S = fabs(pow(-1, 2*n) * pow(x,2*n+1) / tgamma(2*n+2));
		n = n+1;
		sin = sin + S;
	}
	printf("%f", sin);
}


//2
#include <stdio.h>
#include <math.h>

int main()
{
	float cos = 0, x, S;
	int n = 0;
	scanf("%f",x);
	while (n <= 100)
	{
		S = pow(-1, n) * pow(x, 2*n) / tgamma(2*n+1);
		cos = cos + S;	
		n = n + 1;			
	}
	printf("%f", 1-cos);
}

//3
#include <stdio.h>
#include <math.h>

int main()
{
	double Sh = 0, x, S;
	int n = 0;
	scanf("%lf",x);
	while (n <= 100)
	{
		S = pow(x, 2*n+1) / tgamma(2n+1+1);
		Sh = Sh + S;	
		n = n + 1;			
	}
	printf("%lf", Sh);
}

//4
#include <stdio.h>
#include <math.h>

int main()
{
	double ch = 0, x, S;
	int n = 0;
	scanf("%lf",x);
	while (n <= 100)
	{
		S = pow(x, 2*) / tgamma(2n+1);
		ch = ch + S;	
		n = n + 1;			
	}
	printf("%lf", 1+ch);
}