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COORDINATE GEOMETRY | MATHEMATICS

Understanding the Cartesian Coordinate System: A Key Concept in Mathematics

Introduction to the Cartesian Coordinate System The Cartesian coordinate system, an essential concept in mathematics, provides a framework for representing geometric shapes, algebraic equations, and various physical phenomena in a two-dimensional space. Developed by the French mathematician and philosopher René Descartes in the early 17th century, this system revolutionized the field of mathematics by bridging […]
ELECTRONICS

How to Change Your Navigation Button Order on Redmi Phones

Understanding Navigation Button Order If you’ve recently noticed a change in the order of the navigation buttons at the bottom of your Xiaomi Redmi phone, you are not alone. Many users encounter this issue, especially after system updates or accidental settings changes. This feature allows you to customize the order of the buttons—back, home, and […]

  • Cardinality of Sets

    The number of elements in a set is called cardinality. The cardinality of a set A is generally represented by |A| or n(A) meaning the number of elements in set A.  Examples: The cardinality of the set { 1, 45, 2, 34 } is 4. The cardinality of the set { a, e, i, o, u } is 5. […]

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  • Element Position in Sets

    The position of elements in a set does not change the value or the meaning of the set. The above statement signifies that { 1, 2, 3 } and { 1, 3, 2 } and { 2, 3, 1 } are all the same set. A set is primarily a collection and not a sequential […]

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  • Set Membership

    As defined earlier, a set is a collection or group of objects. These objects are called members of the Set. This relationship is represented by using the symbol ∈. The symbol ‘∈’ means “is a member of ” or “belongs to” or “is an element of”. The reverse of this relationship is denoted using the symbol ‘ ∋‘. ∋ means […]

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  • Representation of sets

    In mathematical terms, the members of sets are called elements. A set is represented by enlisting its member elements within curly brackets. There are three general conventions adopted for set representation – Roster, Ellipsis & Set-Builder form. Roster form {a,b,c} All elements are listed within curly brackets. When the number of elements is less, it is often convenient to list all […]

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  • Sets

    What is a set? A Set is a collection of items. The collection can be either real-world objects or imaginary or theoretical entities. It can be a collection of numbers, alphabets, colors, countries’ names, etc.

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  • Discovering Near-Earth Objects 

    The 1781 discovery of Uranus approximately where the Titius-Bode law had forecast seemed a confirmation of its accuracy; Ceres, too, was in the right place. Piazzi first thought it might be a comet, but other astronomers doubted that. After the 1802 discovery of Pallas, traveling in a similar orbit, William Herschel declared the two objects to be a new class of celestial bodies: asteroids.

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  • NASA 2022 Year Review

    An Astronomical and Historic 2022 – What We Did This Year @ NASA – December 23, 2022

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