Sine and Cosine Function Values

Front

What is the value of sin(7π/6)?

Back

-\frac{1}{2}

Front

What is the value of sin(3π/2)?

Back

-1

Front

What are the coordinates of point Q in a circle of radius 15 at angle π/4?

Back

\left(15\cos\frac{\pi}{4},\ -15\sin\frac{\pi}{4}\right)

Front

What is the value of sin(2π/3)?

Back

\frac{\sqrt{3}}{2}

Front

What is the value of cos(π)?

Back

-1

Front

Define the sine function in terms of a right triangle.

Back

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

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 unit circle?

Back

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

Front

What is the value of sin(π/2)?

Back

1

Front

What is the value of cos(0)?

Back

1