The only way to learn MATHEMATICS is to do MATHEMATICS Trigonometry , the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly used in trigonometry. Their names and abbreviations sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc). The word trigonometry comes from the Greek words trigonon (“triangle”) and metron (“tomeasure”). The first use of the idea of ‘sine’ in the way we use it today was in the work Aryabhatiyam by Aryabhata, in A.D. 500. 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 as it is. The word jiva was translated into sinus, which means curve, when the Arabic version was translated into Latin. Soon the word sinus , also used as sine , became comm
The Tamil Nadu Board of Secondary Education will issue the TN SSLC Model Paper 2022. Candidates should practise the 10th model question paper 2021 Tamil Nadu to familiarise themselves with the types of questions that will be asked, as well as the weighted questions, marking scheme, and other factors. TN 10th Model Paper 2022 It also improves students' speed and gives them more confidence in their ability to pass the TN SSLC Exam. The Tamil version of the 10th Public Question Paper for the year 2022 is now available in pdf format.
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