Solving Trig Equations: Advanced Techniques

What is the result of taking the square root of cosine squared in the equation?

• tan(x)

• root3/2

• sin(x)

• cos(x)

Which angle corresponds to an x-value of root3/2 in the unit circle?

• 90°

• 60°

• 30°

• 45°

How do you adjust the domain when the equation involves 2x instead of x?

• No adjustment needed

• Subtract 2

• Multiply by 2

• Divide by 2

What y-value does an angle of 135° produce in the unit circle?

• 0

• root3/2

• 1/2

• root2/2

What is the result when sine of x equals cosine of x?

• 45°

• 90°

• 360°

• 180°

Which angles produce a y-value of a half?

• 90° and 270°

• 60° and 120°

• 45° and 135°

• 30° and 150°

What is the factored form of the equation 2x^2 + 5x - 3?

• (2x - 1)(x + 3)

• (2x + 3)(x - 1)

• (x - 2)(x + 3)

• (x + 2)(x - 3)

What is the maximum y-value possible in a unit circle?

• 1

• 2

• 3

• -1

How do you transform the Pythagorean identity to solve for sine squared?

• cos^2(x) - 1

• 1 + tan^2(x)

• sin^2(x) - 1

• 1 - cos^2(x)

What angles need to be considered when the domain is extended to 4π?

• 0 to 180°

• 0 to 90°

• 0 to 720°

• 0 to 360°