There are an infinite number of solutions, so I don't plan to list them all.
I'll list two of them, and then describe how to get all of the rest.
You said that <u>2cos(x) - 1 = 0</u>
Add 1 to each side: 2cos(x) = 1
Divide each side by 2: cos(x) = 1/2
The angles whose cosine is 1/2 are 60 degrees, 300 degrees,
and any multiple of 360 degrees added to either of those.
4. line them up least to greatest and the one in the middle is the median, which is 4.
Algebraic, because it is a list decimals rounded by tens.
It’s just like solving a positive fraction find a common denominator and Add or subtract
The solution would be= 2(5x + 2)
