SOLUTION: Solve: cos3x = sin x , 0 ≤ x ≤ π/2 I have tried and tried with this one but to no avail! Your help is GREATLY appreciated! Please show all work and explain so t

Algebra ->  Trigonometry-basics -> SOLUTION: Solve: cos3x = sin x , 0 ≤ x ≤ π/2 I have tried and tried with this one but to no avail! Your help is GREATLY appreciated! Please show all work and explain so t      Log On


   



Question 913182: Solve: cos3x = sin x , 0 ≤ x ≤ π/2
I have tried and tried with this one but to no avail! Your help is GREATLY appreciated! Please show all work and explain so that I can understand how to do it next time :)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve: cos3x = sin x , 0 ≤ x ≤ π/2
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sin(x) = cos((pi/2)-x)
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3x = (pi/2)-x
4x = (pi/2)
x = pi/8
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Cheers,
Stan H.
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