Trigonometry Worksheets Trigonometry Worksheets Trigonometry is a part of the geometry which is formed by the two Greek words ‘Trigonon’ and ‘matron’. Here ‘Trigonon’ word refers to the triangle and the ‘matron’ refers to the ‘measurement’. Trigonometry is the branch of geometrical mathematics that deals with the triangles, different type of circles, waves and the oscillation. Trigonometry is crucial in geometry and the physics. The important thing is that the concept of trigonometry is not bounded with the triangle; it also works for the all type of angles. In simple meaning we can say that the trigonometry deals with the behavior of waves and resonance, which are at the root of how matter works at the most fundamental level. In normal triangle, if one of the angles has the measure of 90o and one of the angles is known then the third is fixed because the sum of all three angles of the triangles is 180o. If the angles are known then ratios of the sides can be determined and if any of the side’s length is known, the other two can be determined.
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In the normal triangle there are three types of function are defined that are sin, cosine and tan. These all functions are very helpful in the study of trigonometry function. Trigonometry function is the function that is helpful to measure the length of the all sides of the triangle. In the below we show you the trigonometry function: a) Sin function can be described as the ratio of the side opposite the angle to the hypotenuse of the triangle. The function of sin can be defined as below: Sin A = a / c In the above ‘a’ refers to opposite and ‘c’ can be refers as hypotenuse. b) The second function is cosine function that can be defined as the ratio of the adjacent leg to the hypotenuse. The function of cosine can be notified as: Cos A = b / c In the above the variable ‘b’ defines the value of adjacent and the variable ‘c’ defines the hypotenuse. c) The third function is tangent function that can be defined as the ratio of the opposite leg to the adjacent leg. This function can be defined as: Tan A = a / b In the simpler form this can be write as tan A = Sin A / Cos A. The hypotenuse is the side opposite to the 90 degree angle in a right triangle; it is the longest side of the triangle. The adjacent leg is the other side that is adjacent to angle ‘A’.
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The opposite side is the side that is opposite to angle ‘A’. These are the functions that play an important role to understand trigonometric worksheets. In the same manner there are three reciprocal function works on the concept of trigonometry function. They are given below: d)
Cosecant A = 1 / Sin A
e)
Secant A = 1 / Cos A
f)
Cotangent A = 1 / tan A.
The trigonometry functions are applicable in astronomy to measure the distance to nearby stars, in geography to measure the distance between the landmarks and in the satellite navigation system. The important thing is that the function sine and cosine are the fundamental theory of periodic functions. The functions of trigonometry are based on the various types of trigonometry identities that help in solving the problem that are related to trigonometry.
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