Mastering Trigonometry Concepts

What is the value of sin(30°)?

• 0.75

• 0.5

• 0.25

• 1

Identify the trigonometric ratio for cos(45°).

• 0

• √2/2

• √3/2

• 1/2

Using the identity sin²θ + cos²θ = 1, find cos(60°).

• √3/2

• 1

• 1/2

• 0

• 1/√2

What is the value of tan(90°)?

• infinity

• 1

• 0

• undefined

If sin(A) = 1/2, what is cos(A)?

• sqrt(3)/2 or -sqrt(3)/2

• -1/2

• sqrt(2)/2

• 1/2

Using the identity tan(θ) = sin(θ)/cos(θ), find tan(30°).

• 0.5

• √3/3

• √3

• 1

What is the value of sec(0°)?

• 1.5

• 2

• 0

• 1

Identify the trigonometric ratio for sin(90°).

• 0

• 1/2

• √2/2

• 1

Using the identity 1 + tan²θ = sec²θ, find sec(45°).

• 0

• √2

• √3

• 1

What is the value of cot(45°)?

• tan(45°)

• 1.5

• 0

• 1