Sine and Cosine Function Values

Front

Evaluate the following expression: sin(2π/3) =

Back

√3/2

Front

Evaluate the following expression: cos(π) =

Back

-1

Front

Evaluate the following expression: cos(4π/3) =

Back

-1/2

Front

The coordinates of point Q on a circle of radius 5 at angle \frac{11\pi}{6} are:

Back

\left(5\cos\frac{11\pi}{6},\ 5\sin\frac{11\pi}{6}\right)

Front

Evaluate the following expression: cos(5π/6) =

Back

-√3/2

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 value of sin(0)?

Back

0

Front

What is the value of cos(0)?

Back

1

Front

What is the sine of 90 degrees?

Back

1