Exact Value Trig Speed (Flashcard 2) degrees : 45sec

Front

What is the value of cos(90°)?

Back

0

Front

What is the value of sin(90°)?

Back

1

Front

What is the exact value of sin(240°)?

Back

-√3 / 2

Front

What is the value of csc(330°)?

Back

-2

Front

What is the value of sin(135°)?

Back

√2 / 2

Front

What is the definition of sine in a right triangle?

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the definition of cosine in a right triangle?

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of cosecant?

Back

Cosecant is the reciprocal of sine, defined as csc(θ) = 1/sin(θ).

Front

What is the unit circle?

Back

The unit circle is a circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.

Front

What are the coordinates of the point on the unit circle at 240°?

Back

(-√3/2, -1/2)