UPSC » UPSC CSE Study Materials » Mathematics » An Explanation of the Trigonometric Functions

An Explanation of the Trigonometric Functions

The trigonometric functions are a set of functions that are used to describe the relationships between the sides and angles of a triangle. These functions are important in many areas of mathematics.

If you’re looking for a more in-depth understanding of trigonometric functions, look no further! In this article, we will discuss what trigonometric functions are and how to use them. We’ll also provide examples so that you can see how they work in practice. So whether you’re a student who needs to pass a test or just someone who wants to learn more about trigonometry, read on!

Advanced Trigonometric Functions

The trigonometric functions are a set of functions that allow us to model various situations and phenomena in mathematics, physics, and engineering. In this article, we will focus on the three most common trigonometric functions: sine, cosine, and tangent.

These functions are defined in terms of the angles of a right triangle. Recall that a right triangle is a triangle in which one of the angles is 90 degrees. The side opposite the angle is called the hypotenuse, and the other two sides are called the legs.

The sine of an angle is defined as the ratio of the length of the leg opposite the angle to the length of the hypotenuse. The cosine of an angle is defined as the ratio of the length of the leg adjacent to the angle to the length of the hypotenuse. The tangent of an angle is defined as the ratio of the length of the leg opposite the angle to the length of the leg adjacent to the angle.

Application Of The Trigonometric Functions

There are an infinite number of applications for trigonometric functions. Here are just a few examples:

  • In architecture, trigonometry is used to calculate the heights of buildings and other structures, as well as to determine angles for rafters and stairs.
  • In engineering, trigonometry is used to calculate stress on beams and other structures, as well as to determine the trajectory of projectiles.
  • In physics, trigonometry is used to calculate wave properties such as amplitude, period, and frequency.
  • In astronomy, trigonometry is used to calculate the positions of planets and stars.

These are just a few examples of how trigonometric functions can be applied in the real world. As you can see, trigonometry is a very important and useful tool that can be used in a variety of fields.

Now that you know what trigonometric functions are and how to use them, go out and explore the many applications of these important mathematical concepts!

Examples

The following are examples of trigonometric functions: sine, cosine, and tangent.

  • The sine function is defined as the ratio of the side opposite to the angle in a right-angled triangle to the hypotenuse.
  • The cosine function is defined as the ratio of the side adjacent to the angle in a right-angled triangle to the hypotenuse.
  • The tangent function is defined as the ratio of the side opposite to the angle in a right-angled triangle to the side adjacent to the angle.

These functions can be used to solve various problems, such as finding angles and sides of triangles.

Conclusion

In conclusion, trigonometric functions are essential for solving mathematical problems related to angles and triangles. By understanding how to use them, you can solve complex problems with ease. We hope this article has helped you better understand what trigonometric functions are and how to use them in your mathematics work. If you have any questions or need clarification on anything we’ve covered here, please don’t hesitate to reach out to us.

faq

Frequently asked questions

Get answers to the most common queries related to the UPSC Examination Preparation.

What are the basic trigonometric functions?

Ans : The three primary trigonometric functions are sine, cosine, and tangent. These functions repr...Read full

What are some basic properties of trigonometric functions?

Ans : Trigonometric functions have several useful properties that can be used to simplify expressio...Read full

How are trigonometric functions used?

Ans : Trigonometric functions are used in a variety of ways. One common use is to calculate angles ...Read full