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Introduction to Statistics 150 150 SchoolTutoring Academy

Introduction to Statistics

Statistics is a branch of mathematics where one studies data. The word data means information. This branch deals with collection, presentation, analysis and interpretation of numerical data. Statistics expresses data quantitatively not qualitatively. Statistical data are of two types: Primary Data: This type of data is collected by investigator himself with a definite plan. For…

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Introduction to Sine Law 150 150 SchoolTutoring Academy

Introduction to Sine Law

The Law of Sines is an equation relating the sides of a triangle to the sines of its angles. This law is also known as Sine Law, Sine Formula or Sine Rule. According to Law of Sines: where a, b, and c are the lengths of the sides of the triangle, and A, B and…

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Similar Figures 150 150 SchoolTutoring Academy

Similar Figures

The two figures that have same shape but different size are said to be similar. The angles of similar figures measure the same but corresponding sides are in proportion i.e when two figures are similar the ratio of the length of the corresponding sides are equal.  Any two corresponding sides of two similar figures have…

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Congruent Triangles: An Introduction 150 150 SchoolTutoring Academy

Congruent Triangles: An Introduction

The two figures are congruent if they have exactly the same size and shape. The congruent figures have congruent sides and angles.  The congruence between two sides and angles is shown by the symbol . The two triangles ABC and XYZ shown below are congruent because their corresponding sides and angles are congruent. The table…

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Introduction to Probability 150 150 SchoolTutoring Academy

Introduction to Probability

Probability was introduced in seventeenth century by two French mathematicians, Blaise Pascal and Pierre de Fermat.  Probability deals with the likelihood of occurrence of an event. If can be expressed as a number between 0 and 1. It can also be expressed as equivalent fraction or percentage.  An event with Probability of one is certain…

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Quotient Rule of Differentiation 150 150 SchoolTutoring Academy

Quotient Rule of Differentiation

The quotient rule is a method of finding the derivative of a function that is the quotient of two other functions. If f(x) is the ratio of  two functions g(x) and h(x)     then,     In other words, if h and g are two functions of x, then the derivative of the ratio…

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Unit Circle and Trigonometric Ratios 150 150 SchoolTutoring Academy

Unit Circle and Trigonometric Ratios

The unit circle is a circle whose radius is one and center is at the origin.                     According to Pythagorean Theorem, p2 + q2 = 1 Also, the trigonometric functions cosine and sine may be defined on the unit circle. p = cos(θ) q = sin(θ)…

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Product Rule of Differentiation 150 150 SchoolTutoring Academy

Product Rule of Differentiation

The product rule of differentiation is a rule for differentiating problems where one function is multiplied by another function. According to this rule, first function times the derivative of second function is added to second function times the derivative of first function. If h and g are two functions of x, then the derivative of…

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Converting between Radians and Degrees 150 150 SchoolTutoring Academy

Converting between Radians and Degrees

Radian and Degree are the most commonly used units to measure angels. Angle in degrees is denoted by symbol °  e.g. 50°. The radian is represented by ‘rad’ or by superscript c e.g. 45 rad or 45c. To convert between radian and degree we make use of the fact that 360° is same as 2π…

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Derivative and Rules of Derivative 150 150 SchoolTutoring Academy

Derivative and Rules of Derivative

The derivative is a measure of change of one quantity in response to change in another quantity. The process of finding a derivative is called differentiation. The differentiation is used to find the rate of change of one quantity with respect to another quantity. For example, velocity is change of position with respect to time.…

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