'Sin 85' diaporamas de présentation

9.6 Apply the Law of Cosines

361 views • 18 slides

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.

227 views • 12 slides

EXAMPLE 1

253 views • 12 slides

EXAMPLE 1

219 views • 12 slides

Trigonometry (1)

Trigonometry (1). Sine Rule Cosine Rule. x. c-x. [Height] h 2 = b 2 - x 2. [Height] h 2 = a 2 - (c-x) 2 h 2 = a 2 - c 2 +2cx - x 2. C. b 2 - x 2 = a 2 - c 2 +2cx - x 2. +x 2. +x 2. b 2 = a 2 - c 2 +2cx. a. b. h. b 2 = a 2 - c 2 +2c x b cos A.

235 views • 11 slides