Trig Function
Reference Angles
Exact Value Degree
Exact Value Radian
100
Quadrant 1
100
Find the reference angle for a rotation of 13°.
13
100
Find the exact value of sin 210
in simplest form with a rational denominator.
-sqrt3/2
100
Find the exact value of
sin((7pi)/6)
in simplest form with a rational denominator.
-1/2
200
Quadrant 4
200
Find the reference angle for a rotation of 242°.
62
200
Find the exact value of cos 510
in simplest form with a rational denominator.
-sqrt3/2
200
Find the exact value of
tan((3pi)/2)
in simplest form with a rational denominator.
UND
300
Given the point (2,5) find sin
(5sqrt(29))/29
300
Find the reference angle for a rotation of 296°.
64
300
Find the exact value of
in simplest form with a rational denominator.
(-2sqrt3)/3
300
Find the exact value of
csc((4pi)/3)
in simplest form with a rational denominator.
(-2sqrt3)/3
400
Given the point (3,9) find sec
sqrt(10
400
Find the reference angle for a rotation of 102°.
78
400
Find the exact value of
cot (930)
in simplest form with a rational denominator.
sqrt3
400
Find the exact value of
sec((11pi)/4)
in simplest form with a rational denominator.
-sqrt2
500
Given that
cot theta=2/7
find sin
(7sqrt(53))/53
500
Find the reference angle for a rotation of -128°.
52
500
Find the exact value of
sec(-690)
in simplest form with a rational denominator.
(2sqrt3)/3
500
Find the exact value of
csc(-(pi)/4)
in simplest form with a rational denominator.
-sqrt2