Trigonometric Functions and Values

This video tutorial provides a simple method to remember trigonometry values using tables and reference triangles. It covers sine, cosine, and tangent values for angles 0, 30, 45, 60, and 90 degrees, and explains how to use 30-60-90 and 45-45-90 triangles to derive these values. The video also discusses reciprocal trigonometric functions like secant, cosecant, and cotangent, and concludes with a prompt to subscribe for more content.

What is the sine value for 30 degrees?

• √3/2

• 1

• 1/2

• 0

How is the cosine value for 60 degrees derived?

• 1

• √3/2

• 1/2

• 0

What is the tangent of 45 degrees?

• 0

• Undefined

• 1

• √3

In a 30-60-90 triangle, what is the length of the side opposite the 60-degree angle?

• 1/2

• 1

• √3

• 2

Using SOHCAHTOA, how do you calculate sine for a 30-degree angle?

• Adjacent/Hypotenuse

• Hypotenuse/Opposite

• Opposite/Hypotenuse

• Opposite/Adjacent

What is the cosine value for 45 degrees in a 45-45-90 triangle?

• √2/2

• √3/2

• 1/2

• 1

How do you rationalize the sine of 45 degrees?

• Multiply by √2

• Multiply by 2

• Multiply by √3

• Multiply by 1

What is the secant of 60 degrees?

• √3

• 1

• 2

• 1/2

What is the cosecant of 60 degrees?

• 2

• √3/2

• 1/2

• 2√3/3

What is the cotangent of 60 degrees?

• √3/3

• Undefined

• 1

• √3