1. Given x, y, z. Calculate a, b, if 2. Given positive real numbers a, b, c, x,
ID: 3791027 • Letter: 1
Question
1. Given x, y, z. Calculate a, b, if
2. Given positive real numbers a, b, c, x, y. To find out whether a brick with edges held, b, c in a rectangular opening with sides x and y. Brick slips permitted only so that each of its edges is parallel or perpendicular to each side of the hole.
3. Given a positive integer. To attribute to it the same number on the left. 34 => 3434
4. Find the number of even digits in the whole number entered from the keyboard.
5. Given a real number, and a natural number n. Calculate a (a + 1) ... (a + n-1).
6. Calculate the sum of the infinite with a given accuracy ? (?> 0). Assume that the required accuracy is achieved if the calculated sum of the first few terms and the next term has appeared in modulus less than ?, - this and all subsequent terms can no longer be taken into account. Set an infinite sum:
write C++ program, sample is below
#include <iostream>
#include <cmath>
using namespace std;
void main()
{
float x, y, z;
cout << "Vvedite x: ";
cin >> x;
cout << "Vvedite y: ";
cin >> y;
cout << "Vvedite z: ";
cin >> z;
double a, b;
a = y + x / (pow(y, 2) + fabs(pow(x, 2) / (y + pow(x, 3) / 3)));
b = 1 + pow(tan(z / 2), 2);
cout << "a = " << a << endl;
cout << "b = " << b << endl;
system("pause");
}
#include <iostream>
#include <cmath>
using namespace std;
void main()
{
float x, y, z;
cout << "Vvedite x: ";
cin >> x;
cout << "Vvedite y: ";
cin >> y;
cout << "Vvedite z: ";
cin >> z;
double a, b;
a = y + x / (pow(y, 2) + fabs(pow(x, 2) / (y + pow(x, 3) / 3)));
b = 1 + pow(tan(z / 2), 2);
cout << "a = " << a << endl;
cout << "b = " << b << endl;
system("pause");
}
a=y+Explanation / Answer
#include <iostream>
#include <cmath>
using namespace std;
int main()
{
int n;
cout<<"Enter the value: ";
cin >> n;
double sum = 0;
for(int i=0; i<=n; i++){
sum = sum + 1.0/((pow(4, i)+pow(5, i+2)));
}
cout<<"Result: "<<sum<<endl;
return 0;
}
Output:
sh-4.2$ g++ -o main *.cpp
sh-4.2$ main
Enter the value: 5
Result: 0.0481627
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