Angles
This is the measure of an angle in standard position if its vertex is at the origin and its initial side lies along the positive x-axis.
What is the initial side?
These are defined as ratios of the side lengths of a right triangle.
What are trigonometric functions?
This is the radius of a unit circle.
What is 1?
This is a function that repeats its values in regular intervals or periods.
What is a periodic function?
The hypotenuse of a right triangle is 10 units and the opposite side is 6 units, what is the sine of the angle θ?
What is 36.9 degree?
This term refers to two angles that have the same terminal side.
What are coterminal angles?
This is the term for the trigonometric function representing the ratio of the unknown side to the known side.
What is the sine, cosine, or tangent (depending on the sides involved)?
This is the y-coordinate of the endpoint on the unit circle of an arc of length t.
What is the sine of an angle?
This is the smallest positive number for which the function’s value is repeated.
What is the period?
The sin-1 of (0)
What is 0?
This is the measure used to describe an angle in addition to degrees.
What are radians?
This term refers to two angles whose sum is 90 degrees.
What are complementary angles?
This is the x-coordinate of the endpoint on the unit circle of an arc of length t.
What is the cosine of an angle?
This term describes the height from the center line to the peak of a wave.
What is amplitude?
The cos-1 (-1/2) is
What is 2pi/3
This is the length of a circular arc as a fraction of the circumference of the entire circle.
What is the measure of an angle in radians?
This identity states that the sine of one angle equals the cosine of its complement and vice versa.
What is the cofunction identity?
What are the coordinates of the point on the unit circle corresponding to the angle θ = π/4?
What is (sqrt(2)/2, sqrt(2)/2)?
This is the horizontal shift from the usual position of a trigonometric function.
What is phase shift?
The tan-1 of (sqrt(3))
What is pi/6?