Cos(5x)cos(7x)cos(11x)=3 / (sqrt3)
How is this problem done?
I don't need an exact answer as much as I need the steps leading up to the answer. Calculators aren't permitted so maybe that'll help?
A trigonometric equation is solved. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.