Task #5 What value will the variable a have after executing the command sequence a:=5; b:=2; a:=b * a - SQR(a) ; Choose

Task #5:

Описание: To solve this problem, we need to follow the command sequence step by step. Initially, the variable "a" is assigned the value 5. Then, the variable "b" is assigned the value 2. Finally, the value of "a" is updated using the formula `b * a - SQR(a)`.

Let"s substitute the values: `a := 2 * 5 - SQR(5)`.

Calculating further, we have `a := 10 - 25`, which simplifies to `a := -15`.

Therefore, the value of the variable "a" after executing the command sequence will be -15.

Демонстрация:

Program:

a:=5;

b:=2;

a:=b * a - SQR(a);

write(a);



Output:

-15

Совет: A helpful tip to understand and solve these types of problems is to carefully follow the sequence of commands. Understanding the order of operations (e.g., multiplication before subtraction) is crucial. It is recommended to familiarize yourself with basic arithmetic operations and their precedence.

Задание: Evaluate `a` after executing the command sequence: `a:=7; b:=3; a:=a-b*SQR(b);`