Three identities of trigonometry?

sin²x+ cos²x =1

sec²x - tan²x =1

cosec²x - cot²x =1

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functions.

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functions

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functionsThe reciprocal trigonometric identities are:

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functionsThe reciprocal trigonometric identities are:Sin θ = 1/Csc θ or Csc θ = 1/Sin θ

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functionsThe reciprocal trigonometric identities are:Sin θ = 1/Csc θ or Csc θ = 1/Sin θCos θ = 1/Sec θ or Sec θ = 1/Cos θ

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functionsThe reciprocal trigonometric identities are:Sin θ = 1/Csc θ or Csc θ = 1/Sin θCos θ = 1/Sec θ or Sec θ = 1/Cos θTan θ = 1/Cot θ or Cot θ = 1/Tan θ

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zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

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the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.