Exact Value Trig Speed (Flashcard 3) degrees : 20sec

Front

What is the value of cos(90°)?

Back

0

Front

What is the value of csc(330°)?

Back

-2

Front

What is the value of sec(210°)?

Back

-(2√3)/3

Front

What is the value of sin(330°)?

Back

-1/2

Front

What is the value of tan(180°)?

Back

0

Front

Define the cosine function in terms of a right triangle.

Back

In a right triangle, the cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the relationship between sine and cosecant?

Back

Cosecant is the reciprocal of sine: csc(θ) = 1/sin(θ).

Front

What is the relationship between secant and cosine?

Back

Secant is the reciprocal of cosine: sec(θ) = 1/cos(θ).

Front

What is the sine of an angle in the unit circle?

Back

The sine of an angle is the y-coordinate of the point on the unit circle corresponding to that angle.

Front

What is the tangent of an angle in terms of sine and cosine?

Back

Tangent is the ratio of sine to cosine: tan(θ) = sin(θ)/cos(θ).