Trigonometric equation
Not what you're looking for?
(See attached file for full problem description)
Purchase this Solution
Solution Summary
This shows how to solve a trigonometric equation for exact value.
Solution Preview
The equation is 4(cos theta)^2+4(cos theta)-1=0
Let y=cos theta, then 4y^2+4y-1=0
This is a quadratic equation. By the quadratic formula, we ...
Purchase this Solution
Free BrainMass Quizzes
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.