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Tan^2x=(1/4)

Guest Apr 7, 2015

Best Answer 

 #1
avatar+26745 
+10

If tan2(x) = 1/4 then tan(x) = ±1/2 so x = tan-1(±1/2)

 

Use atan on the calculator on the home page here to find the values of x (atan is the same as tan-1).  This will give you angles in the first and fourth quadrants, but there will also be solutions in the second and third quadrants (obtained by 180° ± x).

.

Alan  Apr 7, 2015
 #1
avatar+26745 
+10
Best Answer

If tan2(x) = 1/4 then tan(x) = ±1/2 so x = tan-1(±1/2)

 

Use atan on the calculator on the home page here to find the values of x (atan is the same as tan-1).  This will give you angles in the first and fourth quadrants, but there will also be solutions in the second and third quadrants (obtained by 180° ± x).

.

Alan  Apr 7, 2015

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