Answer:
The solution code is written in Java.
- public class Main {
- public static void main(String[] args) {
- System.out.print("Please enter a number: ");
- Scanner console = new Scanner(System.in);
- int n = console.nextInt();
- calculateSum1(n);
- calculateSum2(n);
- calculateSum3(n);
- calculateSum4(n);
- }
- public static void calculateSum1 (int num){
- int sum1 = 0;
- for(int i=1; i <= num; i++){
- sum1 += i*i*i;
- }
- System.out.println("Sum 1 : " + sum1);
- }
- public static void calculateSum2 (int num){
- int sum2 = num * num * (num + 1) * (num + 1) / 4;
- System.out.println("Sum 2 : " + sum2);
- }
- public static void calculateSum3 (int num){
- int sum3 = 0;
- for(int i=1; i <=num; i++){
- sum3 += i;
- }
- sum3 = sum3 * sum3;
- System.out.println("Sum 3 : " + sum3);
- }
- public static void calculateSum4 (int num){
- int sum4 = (num * (num + 1) * (2*num + 1)) / (4+2);
- System.out.println("Sum 4 : " + sum4);
- }
- }
Explanation:
Firstly we create four different methods that calculate the sum of the first n cubes in different ways (Line 13 - 43).
This is important to understand the concept of operator precedence to work out the different ways of summation.
For example, The operator * and / will always have higher precedence than +.
On another hand, any expression enclosed within the parenthesis will have highest precedence and therefore the value will be evaluated prior to others.
This is also important to understand the expression evaluation will always start from left to right.
Kale was discoverd just 2 years ago ........
Lower row keys. Your welcome
It doesn't say what Technician B thinks, but I can tell you what the camshaft does and then you can decide who is right on your own. The camshaft is little metal rounded triangles above the piston that times when the intake and exhaust valve open and close.
Technician A is very wrong, the camshaft doesn't do that.
The scope of a temporary table is limited to the database session in which it's defined.
<h3>What is a database?</h3>
A database can be defined as an organized and structured collection of data that are stored on a computer system as a backup and are usually accessed electronically.
In database management system (DBMS), the scope of a temporary table is generally limited to the database session in which it's defined by a software developer or programmer.
Read more on database here: brainly.com/question/13179611
#SPJ12
