Reference Angles & Conversions
State how we convert from degrees to radians
What is multiply by (pi/180)?
Equal to 1/sinx
What is cscx ?
Find the sin (30 degrees)
What is 1/2?
How do we find the period of sine or cosine?
What is 2pi/b?
Use the sum or difference formula to find the exact value of sin(105o).
What is (square root of 6 + square root of 2) over 4
The Reference Angle of 230 degrees is
What is 50 degrees?
Equal to 1 + tan2x
What is sec2x ?
Which quadrants is tangent positive?
What are One and Three?
The period of the graph y = tanx is
What is pi?
The exact value of sin(15 degrees).
What is (sqrt6 - sqrt2)/4 ?
Convert 3pi/8 into degrees
What is 67.5 degrees
Find all radian solutions of tan2x = 1
What are pi/4 + (pi/2)n ?
Find the cosecant of 30 degrees
What is 2?
What does the frequency determine?
What are how many cycles you will see in the period (2pi or pi).
The exact value of cos630o.
What is 0?
Find the reference angle for -135 degrees
What is 45 degrees?
Equal to 1 + (cos2x / sin2x)
What is csc2x ?
Which Quadrantal Angles has cos = 0
What are 90 degrees, 270 degrees
or pi/2, 3pi/2?
What is the horizontal shift of cos(3x-8)?
What is 8/3 to the right?
Find the exact value of tan(435o) by using a sum formula.
What is (square root of 3 + 3) / (3 - square root of 3)?
How do we find the reference angles for Quadrants II, III and IV?
What is 180 - theta , theta - 180 , 360 - theta?
Find all radian solutions of 2cos2x + cosx - 1 = 0 in the interval [0, 2pi).
What are pi/3, 5pi/3, and pi ?
csc(11pi/6)
What is -2?
The beginning of one period of the graph y = 4cos(2x) is at
What is the maximum, or 4?
Find sin(u/2) when tanu=-5/12 and 3pi/2<u<2pi
What is sin(u/2)=square root 26/26?