Answer / mudita rathore

#include<stdio.h>
void main()
{
int a,b,temp;
printf("enter value of a=");
scanf("%d",&a);
printf("enter the value of b=");
scanf("%d",&b);
temp=a;
a=b;
b=temp;
printf("a=%d b=%d",a,b);
}

the factorial of non-negative integer n is written n! and is defined as follows: n!=n*(n-1)*(n-2)........1(for values of n greater than or equal to 1 and n!=1(for n=0) Perform the following 1.write a c program that reads a non-negative integer and computes and prints its factorial. 2. write a C program that estimates the value of the mathematical constant e by using the formula: e=1+1/!+1/2!+1/3!+.... 3. write a c program the computes the value ex by using the formula ex=1+x/1!+xsquare/2!+xcube/3!+....

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