2 tan 4x - 1/2 = -1/2
I know that I am solving x, x being different angles. But I don't know how to get into this position:
tan 4x = (number)
Please help, I need an official of this site to help, not a guest. I need an angle sequence to fill in for x as the answer.
I'll see what I can do.
2 tan 4x -1/2 = -1/2
(+1/2 to both sides)
2 tan 4x =0
(both sides divided by 2)
tan4x = 0/2 = 0
(inverse tan of both sides)
4x = 0
(divide both sides by 4)
x = 0/4 = 0
0 is your answer.
A general answer would be \(0+\frac{nπ}{2}\)
Shades, I really, truly, hope you found this helpful. I'm sorry it took 2+ hours to get to this question, and I hope you haven't given up.
Here's one instance of an angle sequence:
-2π, -3π/2, -π, -π/2, 0, π/2, π, 3π/2, 2π
Alright, the only thing is, I am generally supposed to have an angle for an answer, such as 15o, 10o, etc. Usually there is a sequence of angles that will work for the equation as well.
Here is an example of what I usually deal with:
sin 3x = 1/2
The answer to this being 100, 1300, 2500, 1500, 1700, 2900 All of the angles that can be multiplied by 3 and then the sin will equal 1/2, or .5.
LambLamb has given the correct answer.....note......
tan x = 0 at
0, 180, 360, 540, 720, 900, 1080, 1260, 1440
So......dividing each angle by 4, we have
0, 45, 90, 135 , 180, 225, 270, 315 , 360
So.....the general solution is 0 + n45° or 0 + n(pi/4) in radians
Talk about the blind leading the blind !
Melody or some other moderator, please intervene.