Question
2cos[x-pi/8]-sqrt2=0
Pi=3.141592654
Pi=3.141592654
Answers
drwls
cos[x-pi/8] = sqrt2/2
x - pi/8 = cos^-1(sqrt2/2) = pi/4
x = 3pi/8 radians = 67.5 degrees
x - pi/8 = cos^-1(sqrt2/2) = pi/4
x = 3pi/8 radians = 67.5 degrees