boodysamy2006
boodysamy2006
23-10-2020
Mathematics
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cos (3 X +6 ) =sin 30
Respuesta :
GGGGGG104
GGGGGG104
23-10-2020
cos (3X+6) = 1/2
cos^-1(1/2)=60
3x+6=60
3x=60-6
3x=54
x=54/3
X=18
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