F(x) = 4 [cos (x)]^2 - 3 = 0
4[cos(x)]^2 = 3
cos(x) = √3 / 2
That happens in the first and fourth quadrants, for the angles 30 degrees and 330 degrees.
Answer: x = 30 degrees and x = 330 degrees
You do 244 divide by sixty and your answer is 4.06
For 44
7x2=14
14+8=22
22x2=44
Is this ok, I hope I helped :)
