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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 Class 10th Maths Ncert Solutions Up Board Analysis 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 Byjus Class 8 Maths Ncert Solutions Wester Trigonometry? Determine: sin A, cos A. Chapter 9: Some Applications of Trigonometry �. Note: The values of the trigonometric ratios of an angle do not vary with the lengths of the sides of the triangle, if the angle remains same. An equation involving trigonometric ratios of an angle is called a trigonometric identity, if it is true for all values of the angle s involved. Solution: Ex 8. Solution: Class 10 Maths Introduction To Trigonometry Trigonometry Trigonometry is the study of relationships between the sides and angles of a right-angled triangle.
Trigonometric Ratios Trigonometric ratios of an acute angle in a right triangle express the relationship between the angle and the length of its sides. Trigonometric Identities An equation involving trigonometric ratios of an angle is called a trigonometric identity, if it is true for all values of the angle s involved. RD Sharma Class 12 Solutions.
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