'Sin 34' diaporamas de présentation

1. Opener a) Solve all three: b) Solve for b:

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9.6 Apply the Law of Cosines

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EXAMPLE 1

Solve ABC with a = 11 , c = 14 , and B = 34°. b 2 61.7. b 2 61.7. 7.85. EXAMPLE 1. Solve a triangle for the SAS case. SOLUTION. Use the law of cosines to find side length b. b 2 = a 2 + c 2 – 2 ac cos B. Law of cosines.

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EXAMPLE 1

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EXAMPLE 1

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Objectives

Objectives. Define and apply sine, cosine, and tangent in right triangles. Trigonometric Ratios for Right Triangles.

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