SOLUTION: Solve 4sin(π/6x)=2 for the four smallest positive solutions? to at least two decimal places I got .50,2.50,6.50,8.50 these are incorrect

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Question 1041035: Solve 4sin(π/6x)=2 for the four smallest positive solutions?
to at least two decimal places
I got .50,2.50,6.50,8.50
these are incorrect

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!




Divide both sides by 4


Simplify


or Use the unit circle. Look for points on the circle that have a y coordinate of 1/2. Note: n is any integer.


or Multiply both sides by


or Simplify


The complete solution for x is or where n is any integer. This will generate an infinite number of solutions.


The first four positive solutions are when n = 0 and n = 1


--------------------


When n = 0, then


or


or


or


--------------------


When n = 1, then


or


or


or


--------------------


The four smallest positive solutions are therefore: 1, 5, 13, 17


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