Vocab Related
Sine and Cosine
Tangent
Solving Equations
100
Draw a 225o angle in standard position
100
True or False: Sine is the x coordinate on the unit circle
False. It's the y coordinate
100
How do you find the period of a tangent function using the equation?
pi/B or 180/B
100
Use identities to solve: if sinx = 1 and cosx = 0, then tanx = ?
undefined
200
convert 200o to radians
(10pi)/9
200
Give the period of the function f(x) = 2cos(x/2) + 1
720 degrees or
4pi
200
What are the asymptotes in this tangent function?
0, +-pi/3, +-(2pi)/3, +-pi, etc
200
Use identities to solve: If tanx = 0.97 and sinx = -0.9, then cosx = ?
Round to nearest hundredth.
0.93
300
Convert to degrees. Round to the hundredths.
(17pi)/19
161.05o
300
Give the transformations in order: f(x) = 2cos(x/2) + 1
horizontal stretch, vertical stretch, up 1
300
What is the vertical shift (D) for this tangent function?
D = -2
300
Where does tanx have no solutions?
90 and 270
400
Find a positive coterminal angle for -999o
81o
400
What is the amplitude and period of the data?
Amplitude = 37.5; Period = 6 months
400
What is the phase shift for this tangent function?
pi/6
right or left ... both would work
400
Solve for x: sin2x - 3sinx + 2 = 0
90 degrees or pi/2 radians
500
Give a negative coterminal angle for
(453pi)/6
-pi/2
500
What identity relates sin and cos?
sin2x + cos2x = 1
500
What is the equation of this tangent function? f(x) = tan(Bx + C) + D
f(x) = tan(3x +- pi/2) - 2
500
2tan2x = - tanx
0, 180, 360, 333.43, 153.43 degrees