class 11 trigonometry
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what is the question question is not proper
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Trigonometry (from Greek trigōnon, "triangle" and metron, "measure") is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.
The Trigonometric properties are given below:
Reciprocal Relations
The reciprocal relationships between different ratios can be listed as:
Square law
The basic trigonometric identities based on the Pythagoras Theorem are listed here. You can use the basic definition and Pythagoras theorem to prove these.
Negative Angles
Trigonometric ratios for negative angles can be derived using the circular concept of negative angles and can be derived using cartesian notation and conventions.