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

Front

What is the exact value of sin(0°)?

Back

0

Front

What is the value of sec(240°)?

Back

None of these

Front

Evaluate sin(-30°).

Back

-1/2

Front

What is the exact value of sin(240°)?

Back

-√3/2

Front

What is the value of sin(330°)?

Back

-1/2

Front

What is the relationship between sine and cosine in the unit circle?

Back

sin(θ) = y-coordinate, cos(θ) = x-coordinate.

Front

What is the reference angle for 240°?

Back

240° - 180° = 60°.

Front

How do you find the sine of an angle in the third quadrant?

Back

Sine is negative in the third quadrant.

Front

What is the sine of 30°?

Back

1/2

Front

What is the cosine of 30°?

Back

√3/2