Additive Inverse If we add 0 (zero) to any number, the result is the same as the given number. For example, 3 + 0 = 3, 0 + 8 = 8 We say that 0 is the identity for addition. If the sum of two numbers is 0, we say that each number is the
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Introduction The tangent is one of the three basic trigonometric functions, the other two being sine and cosine. These functions are essential to the study of triangles and relate the angles of the triangle to its sides. The simplest definition of the tangent uses the ratios of the sides of a right triangle, and modern
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Newton’s First Law of Motion – Idea of Inertia States that object continues in its states of rest or uniform motion in a straight line unless an external force acts on it. It is a common experience that a body at rest will remain at rest. For example, a book at rest on top of
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ALKYNES An alkyne is a molecule made up entirely of carbon and hydrogen where on or more carbon atoms are connected by triple bonds. The general formula for an alkyne is CnH2n-2 where n is the number of carbon atoms in the molecule. Alkynes are named by adding the the -yne suffix to the prefix
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AMINES Amines are organic compounds that contain nitrogen and are basic. The general form of an amine is shown in Lewis form. The different kinds of amines Examples showing different ways to show condensed formula are: Amines fall into different classes depending on how many of the hydrogen atoms are replaced. Primary amines In primary
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Amino Acids Amino acids are organic compounds which contain both an amino group and a carboxyl group, that is, any of a group of organic molecules that consist of a basic amino group (−NH2), an acidic carboxyl group (−COOH). Each molecule contains a central carbon (C) atom, termed the α-carbon, to which both an amino
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Sum and difference The sum of a set of numbers is the result when the numbers are added together. Example The sum of four consecutive numbers is 58. Find the numbers. Let the numbers be n, n+ 1, n + 2, n + 3. n + (n + 1) + (n + 2) + (n
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Position, Distance, Displacement, Speed, Velocity and Distance-Time graph The position of a point in space is determined by its distance and direction from other points. The statement of position is accomplished by means of a frame of reference or point of reference, which we shall call the origin. Distance is the movement coverage of a
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Introduction to Advertising Advertising is concerned with giving publicity to the existence of goods and services by focusing attention on facts such as features, uses, benefits, etc, about the goods and services in order to create effective demand for them. It is defined as any non-personal presentation and promotion of goods and services to a
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Introduction Sometimes we do not need to measure of calculate things exactly. We may only wish to have a rough idea, or to calculate only to a certain degree of accuracy. It is in such cases we talk of decimal places, significant figures or rounding off to the nearest unit, tens, etc. When this happens,
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