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by kristina kennedy colin schamp and jess bello n.
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Basic Trigonometric Identities PowerPoint Presentation
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Basic Trigonometric Identities

Basic Trigonometric Identities

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Basic Trigonometric Identities

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  1. By: Kristina Kennedy, Colin Schamp, and Jess Bello Basic Trigonometric Identities

  2. Reciprocal Identities • SIN A= 1/csc A • COS A= 1/sec A • TAN A= 1/cot A • CSC A= 1/sin A • SEC A=1/cos A • COT A= 1/tan A

  3. Quotient Identities • TAN A= sin A/cos A (y/x) • COT A= cosA/ sin A (x/y)

  4. Pythagorean Identities • 1+Cot²x=Csc²x • Tan²x+1=Sec²x • Sin²x+Cos²x=1 • Sin ²=1-Cos²x • Cos²x=1-Sin²x

  5. Examples Example 1: Example 2: • sinA×cotA • sinA×(cosA/sinA) • =cosA • cosA(secA-cosA) • cosA((1/cosA)-(cosA/1)) • 1-cos²A • =sin²A