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Solutions are given in videos format also describing in English and Hindi. These solutions are in Hindi and English Medium format. If you have any doubt, please visit to Discussion Forum to ask your doubts. Trigonometry is the oldest branch of mathematics. This concept was first used by Aryabhata in Aryabhatiyam in A. Trigonometry is a word consisting of three Greek words: Tri-Gon-Metron.

So, trigonometry is the study related to the measure of sides and angles of a triangle in particular, right triangles in CBSE class Trigonometry is used in astronomy to determine the position and the path of celestial objects. Astronomers use it to find the distance of the stars and planets from the Earth.

Captain of a ship uses it to find the direction and the distance of islands and light houses from the sea. Surveyors use to map the new lands. Objective of Class 10 Trigonometry: Identifying the opposite side, adjacent side and hypotenuse of right triangle with respect to given angle A.

Defining the six rations sine, cosine, tangent, secant. Finding the values of trigonometric rations of a given right angled triangle. Finding the values ch 8 maths class 10 examples trigonometry rations of some standard angles 0, 30, 45, 60 and 90 in degrees. Using complementary angles and applying it into trigonometric identities to prove another identities.

The creator of trigonometry is said to have been the Greek Mathematician Hipparchus of the 2nd century Ch 8 maths class 10 examples. The word Trigonometry which means triangle measurement is Ch 10 Maths Class 10 Examples Youtube credited to Bastholoman Pitiscus Aryabhata used the word Ardha-jya for the half-chord, which was shortened to Jya or Jiva in due course.

When the Aryabhatiyam was translated into Arabic, the word Jiva was retained. The cosine function arose from the need to compute the sine of the complementary angle. Aryabhata called it Kotijya. The name cosinus originated with Edmund Gunter.

Revision books are also available to download. Description, history and identities related to Trigonometry is given. What is Trigonometry? Why is trigonometry a useful tool in astronomy? What is the objective of Class 10 Trigonometry?

Determine: sin Ch 8 maths class 10 examples, cos A. Chapter 9: Some Applications of Trigonometry �.

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Nov 03, �� The fourth section of Chapter 8 Class 10 Maths consists of a few solved examples, trigonometric ratio criteria for complementary angles, and an exercise. In the introduction to Trigonometry Class 10, the fifth section consists of the subject relating to trigonometric identities, with a few examples, and ends with an exercise. Download NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry PDF. Ex Class 10 Maths Question 3. If sin A = \(\frac { 3 }{ 4 }\), calculate cos A and tan A. Solution: Ex Class 10 Maths Question 4. Given 15 cot A = 8, find sin A and sec A. Solution: Ex Class 10 Maths . Access Answers of Maths NCERT Class 10 Chapter 8 � Introduction to Trigonometry Exercise 1. Express the trigonometric ratios sin A, sec A and tan A in terms of cot A. Solution: To convert the given trigonometric ratios in terms of cot functions, use trigonometric formulas.

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