29o
31o
31o 20'
31o 18'
Correct answer is C
siny3=sin120o5
sin 120o = sin 60o
5 sin y = 3 sin 60o
sin y = 3sin60o5
3×0.8665
= 2.5985
y = sin-1 0.5196 = 30o 18'
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