Trig Functions on the Unit Circle

Front

What is the definition of the cotangent function?

Back

The cotangent function, denoted as cot(x), is the reciprocal of the tangent function: cot(x) = 1/tan(x). It can also be expressed as cot(x) = cos(x)/sin(x).

Front

Back

Front

What is the value of cos(5π/6)?

Back

Front

What is the value of cos(π)?

Back

The value of cos(π) is -1.

Front

What is the value of cos(30°)?

Back

Front

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

Back

On the unit circle, the sine of an angle corresponds to the y-coordinate, while the cosine corresponds to the x-coordinate of the point on the circle.

Front

What is the value of sin(π/2)?

Back

The value of sin(π/2) is 1.

Front

What is the value of tan(π/4)?

Back

The value of tan(π/4) is 1.

Front

What is the value of sin(3π/2)?

Back

The value of sin(3π/2) is -1.

Front

What is the value of cos(0)?

Back

The value of cos(0) is 1.