SOLUTION: SOlve 3sin(2a)-2cos(a)=0 for all solutions
a=
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Question 522884: SOlve 3sin(2a)-2cos(a)=0 for all solutions
a=
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve 3sin(2a)-2cos(a)=0 for all solutions
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3*2sin(a)*cos(a) - 2cos(a) = 0
Factor:
2cos(a)[3sin(a) - 1] = 0
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cos(a) = 0 or 3sin(a)-1 = 0
a = 90 or 270 degree or a = invsin(1/3) = 19.47 or 160.53 degrees
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Cheers,
Stan H.
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