Right Triangle Trigonometry
Angle Conversions
Definitions
Circular Trigonometry
Reference Angles
Coterminal Angles
100
Our common symbols for the measures of the angles of a triangle.
What are alpha, beta, and gamma?
100
30o
What is
pi/6?
100
1/sin theta
What is cosecant?
100
y/r
What is the definition of sine?
100
Between 0 and
pi/2.
What is the possible values of a reference angle?
100
The smallest positive angle coterminal with 827o.
What is 107o?
200
7/y
What is
tan 62^o?
200
(10pi)/3
What is 600o?
200
sin alpha/cos alpha
What is
tan alpha?
200
cos 3pi.
What is -1?
200
The reference angle for -104o.
What is 76o?
200
The largest negative angle coterminal with -412o.
What is -52o?
300
sqrt2/2
What is sin 45o?
What is cos 45o?
300
pi/18
What is 10o?
300
An equivalence for
cos beta where alpha + beta=pi/2.
What is
sin alpha?
300
The value of cosine if the terminal ray passes through
(-3, -1).
What is
-(3sqrt10)/10?
300
The reference angle for (15pi)/7 .
What is
pi/7?
300
The smallest positive angle coterminal with
-(73pi)/20.
What is
(7pi)/20?
400
17tan42^o
What is the length of the side opposite of C?
400
225o
What is
(5pi)/4?
400
Rotation in the clockwise direction.
What is a negative angle?
400
theta!=pi/2+pin
where n is an integer.
What is the domain of tangent?
What is the domain of secant?
400
The value of
sin ((4pi)/3).
What is
-sqrt3/2?
400
The largest negative angle coterminal with
(15pi)/7.
What is
-(13pi)/7?
500
An expression to calculate the value of
t.
What is
sin^-1(33/65)?
What is
cos^-1(53/65)?
What is
tan^-1(33/53)?
500
2
What is
360/pi?
500
Quadrantal
What is an angle in standard position whose terminal ray is on an axis.
500
theta ∈ (-∞, ∞).
What is the domain of sine?
What is the domain of cosine?
500
The relationship between the values of
tan(-(17pi)/12) and tan(-(5pi)/12).
What is equal?
500
The smallest positive angle that is coterminal with 8.
What is
8 - 2pi?