Angles
Formulas
Calculate
Vocabulary
Coordinates
100
110 degrees when converted to radians
What is 11 pi / 18?
100
two of the three pythagorean identities
What are sin ^2 x + cos ^2 x = 1 tan^2 x + 1 = sec ^2 x cot ^2 x + 1 = csc ^2 x?
100
another angle that is cotermianl with -165 degrees
What is 195 degrees?
100
quadrantal
What an angle is called when its terminal side falls on one of the axes?
100
sin 30 degrees
What is 1/2?
200
used to convert from radians to degrees
What is multiply by 180 / pi?
200
sin (A + B) equal to
What is sin A cos B + cos A sin B?
200
147 degrees and 36 minutes converted to decimal degrees
What is 147.6 degrees?
200
the smallest positive number for which f(x + p)=f(x) called
What is period?
200
cos 0
What is 1?
300
the only quadrant where cosecant is positive and cotangent is negative
What is quadrant II?
300
2 sin x cos x
What is sin(2x)?
300
the complement to 25 degrees
What is 65 degrees?
300
a central angle that cuts off an arc equal in length to the radius of the circle has a measure of this
What is 1 radian?
300
tan pi/4
What is 1?
400
the 5 reference angles, given in radians, used in our trigonometry chart
What are 0, pi/6, pi /4, pi / 3. pi / 2?
400
cos 2x
What is 2 cos^2 x -1 or 1 - 2 sin^x?
400
the pieces to the missing right triangle if C = 90 degrees, A = 49 degrees and a= 89 inches
What are B = 41 degrees b = 77.4 inches c = 117.9 inches?
400
sin A /a = sin B/b = sin C/c
What is the law of sines?
400
cos 4 pi/3
What is -1/2?
500
the reference angle for 315 degrees
What is 45 degrees?
500
one of the three law of cosines
What is a^2 = b^2 + c^2 - 2 b c cos A b^2 = a^2 + c^2 - 2ac cos B c^2 = a^2 +b^2 - 2ab cos C?
500
the exact arc length if r = 5 and theta = 57 degrees
What is 19 pi /12?
500
an angles initial side is along the positive x -axis and its vertix is at the origin
What is standard position?
500
4cos (- pi/4)
What is 2 square roots of 2?
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