Introduction to Trigonometry and Ratios from "summary" of NCERT Class 10 Mathematics Solutions by JagranJosh
Trigonometry is a branch of mathematics that deals with the study of angles, triangles, and the relationships between their sides and angles. It is an essential concept for understanding various mathematical and scientific principles. Trigonometry is based on the ratios of the sides of a right-angled triangle. These ratios are known as trigonometric ratios. There are six trigonometric ratios - sine, cosine, tangent, cosecant, secant, and cotangent. These ratios are defined based on the sides of a right-angled triangle. The sine of an angle is the ratio of the length of the side opposite the angle to the length of the hypotenuse. The cosine of an angle is the ratio of the length of the side adjacent to the angle to the length of the hypotenuse. The tangent of an angle...
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