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Combined Defence Services Examination

The Combined Defence Services (CDS) Examination is conducted twice a year by the Union Public Service Commission (UPSC) for recruitment into the Indian Military Academy (IMA), Indian Naval Academy (INA), Officers Training Academy (OTA), and the Air Force Academy (AFA). The exam is conducted in two stages: the written examination and the Services Selection Board…

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Independence Day Quiz Marathon

Saitechinfo Independence Day Quiz Marathon! A challenge to Quiz Mongers!! Start Date: 12 August 2023, End Date: 15 August 2023 Number of Quiz Contests: Minimum 60 Anyone can participate in the quiz. However, Saitech students, Saitech parents, Saitech alumni and Saitech associates are eligible for award of prizes. Subjects: Maths, Physics, Chemistry, Engineering, Technology, Biology,…

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Chemicals from common salts

Baking Soda (Sodium Bicarbonate) Washing Soda (Sodium Carbonate) Sodium Hydroxide Plaster of Paris Water of crystallization (or water of hydration) It refers to the specific number of water molecules present in one formula unit of a salt. This water is not present as liquid but is bound within the solid structure. Plaster of Paris is…

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Euclid Geometry

Here are Euclid’s five common notions (axioms): Euclid’s Postulates: To give a concrete example, here are the five postulates from Euclid’s “Elements” that form the foundation of Euclidean geometry: Problem Prove that an equilateral triangle can be constucted on any given line segment.

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Addition and subtraction in polynomials

Concept Video Any Time Online Quiz A polynomial is a mathematical expression consisting of variables, coefficients, and mathematical operations such as addition, subtraction, and multiplication. It is composed of terms, where each term includes a variable raised to a non-negative integer exponent, multiplied by a coefficient. Polynomials can have one or multiple variables and can…

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