SOLUTION: Sqrt(2)cos3x-1=0

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Question 728848: Sqrt(2)cos3x-1=0
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
For: [0,90º]
Sqrt(2)cos3x-1=0
cos3x=1/√2=√2/2
3x=45º
x=15º