SOLUTION: 5sinx+2cosx=0 Use a graphing utility to approximate the solutions of the equation in the interval [0, 2π)

Algebra ->  Trigonometry-basics -> SOLUTION: 5sinx+2cosx=0 Use a graphing utility to approximate the solutions of the equation in the interval [0, 2π)      Log On


   

Question 893446: 5sinx+2cosx=0 Use a graphing utility to approximate the solutions of the equation in the interval [0, 2π)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
5sin%28x%29%2B2cos%28x%29=0
5sin%28x%29=-2cos%28x%29
tan%28x%29=-2%2F5
x=158.2 and x=338.2 degrees
or
x=2.76 and x=5.90 radians
.
.
.
Now graphically,
graph%28300%2C300%2C-2%2C10%2C-6%2C6%2C5sin%28x%29%2B2cos%28x%29%29