Trigonometric

What is the value of sin(90°)?

• 1.5

• -1

• 1

• 0

Calculate cos(45°).

• 0.5

• 0.866

• 1.0

• 0.7071

What is the period of the sine function?

• 2

• 2π

• π

• 3π

If tan(θ) = 1, what is the value of θ?

• θ = 60° + n*180°, n ∈ ℤ

• θ = 90° + n*180°, n ∈ ℤ

• θ = 30° + n*180°, n ∈ ℤ

• θ = 45° + n*180°, n ∈ ℤ

Define the Pythagorean identity in trigonometry.

• sin²(θ) + cos²(θ) = 1

• tan²(θ) + cot²(θ) = 1

• sin(θ) + cos(θ) = 0

• sin²(θ) - cos²(θ) = 1

What is the value of sin(30°)?

• 0.75

• 0.5

• 0.25

• 1.0

How do you convert radians to degrees?

• Add π to the radian value.

• Multiply the radian value by 180/π.

• Multiply the radian value by π/180.

• Divide the radian value by 180.

What is the amplitude of the function y = 3sin(x)?

• 1

• 5

• 3

• 2

Find the exact value of cos(60°).

• -0.5

• 1

• 0.25

• 0.5

What is the relationship between sine and cosine?

• Sine is only defined for acute angles, while cosine is for obtuse angles.

• Sine and cosine are complementary functions related to the angles of a right triangle.

• Sine and cosine are identical functions with the same values.

• Sine and cosine are unrelated and do not appear in right triangles.