The video tutorial covers the unit circle and basic trigonometric ratios, including cosine, sine, and tangent. It explains how to convert angles between degrees and radians and find co-terminal angles. The tutorial also discusses evaluating trigonometric functions, understanding periods, and graphing these functions. Additionally, it explores trigonometric identities and simplification techniques, providing a comprehensive overview of these mathematical concepts.

What is the x-coordinate of the point on the unit circle at 0 radians?

• 1

• 0

• Undefined

• -1

Which angle in the first quadrant has a cosine value of √3/2?

• π/3

• 0

• π/6

• π/4

What is the reciprocal of the sine function?

• Cotangent

• Tangent

• Cosecant

• Secant

How many degrees are in π radians?

• 270°

• 360°

• 180°

• 90°

What is the sine of 90 degrees?

• -1

• 0

• 1

• Undefined

What is the period of the function y = 5 cos(3x)?

• 2π

• 2π/3

• π/3

• π

Which identity is represented by sin²θ + cos²θ = 1?

• Pythagorean Identity

• Reciprocal Identity

• Even-Odd Identity

• Quotient Identity

In a trigonometric proof, what is the first step when simplifying an expression?

• Convert to sine and cosine

• Multiply by the conjugate

• Use a Pythagorean identity

• Factor out common terms