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Name: ___________________

Period: __________________

Date: ____________________

Period: __________________

Date: ____________________

Across

Functions that behave in a repetitive, cyclic manner are called ________.

The trig function equal to 1/x.

The smallest number c for which f is periodic is called the ______ of f.

One ______ is the measure of a central angle that intercepts an arc s equal in length to the radius r of the circle.

An angle of _________ represents the angle from the horizontal downward to an object

The trig function equal to 1/y.

A(n) _______ of a circle is the region bounded by two radii of the circle and their intercepted arc.

Cofunctions of _____________ angles are always equal.

Two positive angles are _____________ when their sum is pi

Angles between pi/2 and pi

The trig function equal to y/x.

Angles that have the same initial and terminal sides

The ____ circle is a circle centered at the origin with a radius of one unit.

An angle of _________ represents the angle from the horizontal upward to an object

You determine the _______ of an angle by the amount of rotation from the initial side to the terminal side.

______ speed = arc length divided by time

An angle in which the origin is the vertex and the initial side coincides with the positive x-axis is said to be in _________ position.

A second way to measure angles, aside from radians, is in _______

A function is ____ when f(-t) = f(t)

Down

The acute angle formed by the terminal side of an angle and the horizontal axis

Because r = (x^2 + y^2)^1/2 cannot be zero, it follows that the sine and cosine functions are _______ for any real value of the angle.

Clockwise rotation generates _________ angles.

The longest side of a right triangle

The trig function equal to x/y.

The side across from the angle in a right triangle

Derived from Greek language, this word means "measurement of triangles."

The position after rotation is the _________ side.

The side next to the angle in a right triangle

Two positive angles are ______________ when their sum is pi/2

________ speed = central angle divided by time

Counterclockwise rotation generates _________ angles

A function is ___ when f(-t) = -f(t).

The trig function equal to y.

The starting position of the ray is the _______ side of the angle.

Angles between 0 and pi/2

To define a radian, you can use a ________ angle of a circle, one whose vertex is the center of the circle.

The trig function equal to x.

A(n) is determined by rotating a ray (half-line) about its endpoint.

The endpoint of the ray is the ______ of the angle.

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