SOLUTION: I don't understand how to solve the equation for (x) over the interval of [0,360(degrees)].
4cos(2x)= sqrt( 3 )
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4cos(2x)= sqrt( 3 )
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Question 682524: I don't understand how to solve the equation for (x) over the interval of [0,360(degrees)].
4cos(2x)= sqrt( 3 ) Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! solve the equation for (x) over the interval of [0,360(degrees)].
4cos(2x)= sqrt( 3 )
cos(2x)=√3/4
2x=arccos√3/4
using calculator(cos^-1 key)
2x≈64.34º, 295.66º (in Q1 and Q4 where cos>0)
x≈32.17º, 147.83º
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