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Cos (3 X +6 ) =sin 30
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1 vote
Cos (3 X +6 ) =sin 30

User Mark Watts
by
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1 Answer

5 votes
cos (3X+6) = 1/2
cos^-1(1/2)=60
3x+6=60
3x=60-6
3x=54
x=54/3
X=18
User Anshul Goyal
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5.6k points
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