The Concept of Trigonometry

Trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly used in trigonometry. Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc). These six trigonometric functions in relation to a right triangle are displayed in the figure. For example, the triangle contains an angle A, and the ratio of the side opposite to A and the side opposite to the right angle (the hypotenuse) is called the sine of A, or sin A; the other trigonometry functions are defined similarly. These functions are properties of the angle A independent of the size of the triangle, and calculated values were tabulated for many angles before computers made trigonometry tables obsolete. Trigonometric functions are used in obtaining unknown angles and distances from known or measured angles in geometric figures.

Our Research & Findings

#IBPS PO

As a sample we have choosen the last 4 year's (2019, 2018, 2017, 2016) previously asked question papers. In quatitative aptitude section, a total number of questions asked are 35. Out of these 35 questions 2.86% of questions are from Trigonometry.

#SBIPO

As a sample we have choosen the last 4 year's (2019, 2018, 2017, 2016) previously asked question papers. In quatitative aptitude section, a total number of questions asked are 35. Out of these 35 questions 3.57% of questions are from Trigonometry.

#TCSNQT

As a sample we have choosen the last 4 year's (2019, 2018, 2017, 2016) previously asked question papers. In quatitative aptitude section, a total number of questions asked are 26. Out of these 26 questions 3.53% of questions are from Trigonometry.

Teaching Methodology

  • Concepts based solutions
  • Short cut methods
  • Spatial visualization
Sample Question

If the height of a pole is 2√3 meters and the length of its shadow is 2 meters, find the angle of elevation of the sun.
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