# Trigonometry Hand Written Note 1 With Solved Example

Here, We provided to Trigonometry Hand Written Note 1 With Solved Example. Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies. The Greeks focused on the calculation of chords, while mathematicians in India created the earliest-known tables of values for trigonometric ratios (also called trigonometric functions) such as sine. Free download PDF Trigonometry Hand Written Note 1 With Solved Example. Throughout history, trigonometry has been applied in areas such as geodesy, surveying, celestial mechanics, and navigation. Free download PDF Trigonometry Hand Written Note 1 With Solved Example.

Trigonometry is known for its many identities, which are equations used for rewriting trigonometrical expressions to solve equations, to find a more useful expression, or to discover new relationships. Free download PDF Trigonometry Hand Written Note 1 With Solved Example.

Trigonometry is one of the important branches in the history of mathematics and this concept is given by a Greek mathematician Hipparchus. Basically, it is the study of triangles where we deal with the angles and sides of the triangle. To be more specific, it’s all about a right-angled triangle. It is one of those divisions in mathematics that helps in finding the angles and missing sides of a triangle with the help of trigonometric ratios. The angles are either measured in radians or degrees. The usual trigonometry angles are 0°, 30°, 45°, 60°, and 90°, which are commonly used. Free download PDF Trigonometry Hand Written Note 1 With Solved Example.

This branch divides into two sub-branches called plane trigonometry and spherical geometry. Here in this theory, you will learn about the trigonometric formulas, functions, and ratios, Right-Angled Triangles, etc. Free download PDF Trigonometry Hand Written Note 1 With Solved Example.

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BOOK NAMETRIGONOMETRY HAND WRITTEN NOTE 1 WITH SOLVED EXAMPLE

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### Trigonometry Angles:

The trigonometry angles which are commonly used in trigonometry problems are 0°, 30°, 45°, 60°, and 90°. The trigonometric ratios such as sine, cosine, and tangent of these angles are easy to memorize. We will also show the table where all the ratios and their respective angle’s values are mentioned. To find these angles we have to draw a right-angled triangle, in which one of the acute angles will be the corresponding trigonometry angle. Free download PDF Trigonometry Hand Written Note 1 With Solved Example.  ### What are the Different Trigonometric Functions?

There are 6 trigonometric functions which are:

• Sine function
• Cosine function
• Tan function
• Sec function
• Cot function
• Cosec function

#### CSIR NET Exam Pattern 2020

NTA has released the CSIR NET Exam Pattern for all the five subjects. Candidates will have to pick any one subject and apply for the same. The CSIR UGC NET exam pattern and marking scheme are different for all the subjects. However, Part A syllabus is the same for all subjects.

• CSIR NET question paper for each subject is divided into three parts namely, Part A, Part B, Part C.
• All three sections are compulsory.
• There will be no break between the three sections.
• All 3 parts will have only Multiple Choice Questions (MCQs).
• The CSIR NET 2020 will be conducted for a total of 200 marks.
• The exam will be held for a duration of 3 hours.

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