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Abstraction is a fundamental concept in computer science and software engineering aimed at managing complexity by hiding the implementation details and exposing only the essential features of a system. The primary goals of abstraction include: • Simplification: Abstraction helps in simplifying complex systems by providing a high-level view of the functionality. It allows developers to interact with a system or component without needing to understand its underlying implementation. For example, using a software library provides a simplified interface to complex functions, allowing developers to use it without needing to understand how the functions are implemented. • Encapsulation: By abstracting the details, a system can encapsulate the complexity and protect the internal state from unauthorized access or modification. This ensures that users interact with the system through well-defined interfaces and methods. • Reusability: Abstraction promotes reusability by allowing components or systems to be designed and used in various contexts without modification. For example, abstract classes and interfaces in object-oriented programming provide reusable templates that can be extended or implemented as needed. • Maintainability: When implementation details are hidden, changes in the internal workings of a system do not affect the external interface. This separation of concerns makes it easier to update or maintain different parts of a system without impacting the overall functionality. • Focus on What, Not How: Abstraction enables focusing on what a system does rather than how it does it. For instance, when using a database query language, you focus on what data you want to retrieve rather than how the database processes the query.
If (r + s + t) = 12 and (rs + st + tr) = 60, then find the value of (r² + s² + t²).
If (x2 + y2) = 9 and (xy)2 = 3, then find the value of (x4 + y4).
If a2+2 = 2a
then find a4 - a3 + 2a2 -2a+ 9 = ?
The area of △ ABC is 44 cm2 . If D is the midpoint of BC and E is the midpoint of AB, then the area of △ BDE is
If (a + b + c) = 9, find (a – 4)3 + (b – 2)3 + ( c – 3)3 – 3(a – 4 ) (b – 2 ) (c &n...
If a + b = 56 and (a – b)² = 496, find the value of the product of a and b.
If = 2 then find
Atul has Rs.500 with him. He invested 30% of the amount at 5% p.a. for 6 years and rest at 20% p.a. for 4 years. Find the sum of simple interests receiv...
If x + 1/x = 5 then find out the value of x⁵ + 1/(x⁵)?