1. +0/3 points | Previous Answers SwokATG13 8.2.007 My Notes Solve AABC. (Round
ID: 2920057 • Letter: 1
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1. +0/3 points | Previous Answers SwokATG13 8.2.007 My Notes Solve AABC. (Round your answers to the nearest whole number. If there is no solution, enter NO SOLUTIO =146", a=145, c=27 b = 107.4 = 49.02 =-15.02 Need Help? ReadIt Watch It Talk to a Tutor 2. + -15 points SwokATG13 8.2.009 My Notes Solve ABC. (Round your answer for c to two decimal places. Round your answers for and to the near there is no solution, enter NO SOLUTION.) = 115°10', a= 1.20, b= 2.10 = Need Help? |Talk to a Tutor Road It 3. +0/3 points | Previous Answers SwokATG13 8.2.011 My Notes Solve AABC. (Round your answers to three decimal places. If there is no solution, enter NO SOLUTION.) a=14, b=20, c=35 ·1.021 = 11.218 = 1.123 Need Help? |Talk to a Tutor Road ItExplanation / Answer
1)
by law of cosines
b2=a2+c2-2a*c*cos
=>b2=1452+272-2*145*27*cos146o
=>b2=28245.364193105976448409617468958
=>b=168.06357188012510061978102538348
=>b = 168
cos=(b2+c2-a2)/2bc
=>cos=0.875921214654904590583584143680663905532348756285
=>=29o
cos=(a2+b2-c2)/2ab
=>cos=0.995956545409949494303615541407600514142252300553
=>=5o
==========================================================
2)
c=[a2+b2-2abcos]
=>c=[1.202+2.102-2*1.20*2.10*cos(115o10')]
=>c=2.83
cos=(b2+c2-a2)/2bc
=>cos=0.923262544588203519656368412975830633480123366496
=>=22o35'
cos=(a2+c2-b2)/2ac
=>cos=0.740281727863400163154190681579979724743117441965
=>=42o15'
========================================
3)
cos=(b2+c2-a2)/2bc
cos=1.020714285714285714285714285714285714285714285714
=> NO SOLUTION
cos=(a2+c2-b2)/2ac
cos=1.041836734693877551020408163265306122448979591836
=>NOSOLUTION
cos=(a2+b2-c2)/2ab
cos==-1.123214285714285714285714285714285714285714285714
=>NOSOLUTION
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