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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 Ch 8 Class 10 Maths Introduction Yourself 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 of 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 BC. The word Trigonometry which means triangle measurement is 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 below. What is Trigonometry?
Why is trigonometry a useful tool in astronomy? What is the objective of Class 10 Trigonometry? Determine: sin A, cos A. Chapter 9: Some Applications Ch 8 Class 10 Maths Introduction German of Trigonometry �.
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