Signs of Quadrants
Quadrants I & III
In which quadrants is the tan (or cot) positive?
What is the cosine of theta?
s = r(theta)
What is the formula for arc length?
2pi/3
What is the inverse cosine of - 1/2 ?
Amplitude
What is half the distance from trough to crest?
Quadrants II & III
In which quadrants is the cos (and sec) negative?
y / r
What is the sine of theta?
60 minutes
How many minutes in a degree?
- pi / 4
What is the inverse tangent of -1 ?
What is the inverse sine of -sqrt2 / 2 ?
Period
What is the length of one cycle?
Quadrants III & IV
In which quadrants is the sin (and csc) negative?
y / x
What is the tangent of theta?
What do you multiply by to convert radians to degrees?
- pi/2
What is the inverse sine of -1?
Phase Shift
What is omega divided by phi?
What is the horizontal shift?
Quadrant I
In which quadrant are all trig functions positive?
r / x
What is the secant of theta?
III
In which quadrant are no inverse trig functions found?
[-1, 1]
What is the range of sine (or cosine)?
Quadrants II & IV
In which quadrants is tan(and cot) negative?
r / y
3600 seconds
How many seconds in a degree?
pi
What is the inverse cosine of -1?
Even
What do we call a function that has symmetry with respect to the y-axis?
What is cosine? secant?