SOLUTION: Using inverse trigonometric functions, find a solution to the equation cos(x) = 0.9 in the interval 0<x<pi. Then, use a graph to find all other solutions to this equation in this i

Algebra ->  Trigonometry-basics -> SOLUTION: Using inverse trigonometric functions, find a solution to the equation cos(x) = 0.9 in the interval 0<x<pi. Then, use a graph to find all other solutions to this equation in this i      Log On


   

Question 969479: Using inverse trigonometric functions, find a solution to the equation cos(x) = 0.9 in the interval 0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
cos(x) = 0.9
x = acos(0.9) =~ 25.84 degs
x =~ 0.451 radians