7. Use a graphing or scientific calculator and the law of cosines, c = a? + 6? – 2ab cos C, a? = 6?+c² – 2bc cos A, and 6 = a? + c° – 2ac cos B to find the missing angle to the nearest degree or length to the nearest tenth. a = 6, 6 = 13, c = 12, ZB = 94" 68" 43" 47* 86"
7. Use a graphing or scientific calculator and the law of cosines, c = a? + 6? – 2ab cos C, a? = 6?+c² – 2bc cos A, and 6 = a? + c° – 2ac cos B to find the missing angle to the nearest degree or length to the nearest tenth. a = 6, 6 = 13, c = 12, ZB = 94" 68" 43" 47* 86"
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Use a graphing or scientific calculator and the law of cosines, c2=a2+b2-2abcosC, a2=b2+c2-2bccosA, and b2=a2+cc-2accosB to find the missing angle to the nearest degree or length to the nearest tenth.
Transcribed Image Text:7. Use a graphing or scientific calculator and the law of cosines, c = a? + 6? – 2ab cos C, a? = 6?+c² – 2bc cos A, and 6 = a? + c° – 2ac cos B to find the missing angle to the nearest
degree or length to the nearest tenth.
a = 6, 6 = 13, c = 12, ZB =
94"
68"
43"
47*
86"
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