#028 Solving Trig Equations Within an Interval

Why is specifying an interval important when solving trigonometric functions?

• It limits the number of solutions

• It makes the function easier to graph

• It's not important, just conventional

• It changes the nature of the function

What is the first step that should be taken to solve the equation?

• Divide both sides by 4

• Take the square root of both sides

• Add 3 to both sides

• Subtract 1 from both sides

What is the next step to solve the equation?

• Add the same number to both sides.
• Apply the inverse function to both sides

• Square both sides

• Take the square root of both sides

What is the next step in solving the equation?

• Take the square root of both sides

• Divide both sides by 4

• Multiply both sides by 4

• Subtract 3 from both sides

Why doesn't the instructor include solutions beyond 2π?

• They don't exist

• They're not relevant to the problem

• That would be beyond the indicated domain

• The function changes after 2π