Definitions
Trig ratio for y/r
What is sine?
Cosine of 240 degrees
What is -1/2?
Value of the Hypotenuse Leg 1=1.5 Leg=2
What is 2.5?
sin^2(theta)+cos^2(theta)=1
What is Pythagorean Identity?
Maximum and minimum values that sine has between 0 degrees and 360 degress
What is 1 and -1?
The 6 Trigonometric Functions
What is sine, cosine, tangent, secant, cosecant, and cotangent?
Sine is positive in which quadrant(s)
What is quadrant 1 and 2?
The exact value of sine of 330 degrees
What is -1/2?
An equivalent expression to tanx*cosx
What is sinx?
The relative acute angle for 315 degrees
What is 45 degrees?
We use this rule to find out which trig ratios are positive in which quadrants
What is the CAST rule?
Cotangent of an angle if the sine of the angle is 3/5
What is 4/3?
The exact value of tangent of 225 degrees
What is 1?
sin^2(theta)-sin^2(theta)cos^2(theta)=sin^4(theta)
What is LS = RS?
Possible measurements of theta between 0 degrees and 360 degrees if cos(theta)=1/2
What is 60 degrees and 300 degrees?
The first arm of an angle drawn on a Cartesian plane meeting the terminal arm at the origin (usually positioned on the positive x-axis)
What is the initial arm?
This pair represents coterminal angles
a) 20 and 70
b) 80 and 110
c) 95 and -175
d) 35 and -325
What is 35 and -325? (d)
If the secant of an acute angle in a right triangle is 2, the trigonometric function that has a value of 0.5 is
What is sine?
cotxcosx=cscx-sinx
What is LS=RS?
Three primary trig ratios for the point (-30,40)
What is sinx=40/50, cosx=-30/50, and tanx=40/-30?
The positive acute angle formed between the terminal side of an angle and the x-axis
What is the reference angle?
This angle does not have a reference angle with a measure of 15 degrees
a) -345
b) 165
c) 255
d) 345
What is 255? (c)
This trigonometric function has 90 degrees as undefined
What is tangent?
(sinx-tanx)(cosx-cotx)=(sinx-1)(cosx-1)
What is LS = RS?
sec(x)=1/2 is not possible
What is a side length longer than the hypotenuse?