Angles & Ratios
General Solutions
Identities
Inverse Functions
Potpourri
100
This positive acute angle is coterminal with -7Π/4.
What is Π/4?
100
This is the general solution of the equation 0=sinx.
What is Πn?
100
This trig expression is equal to (tanx)^2 + 1.
What is (secx)^2?
100
This is the domain of the arcsine function.
What is [-1,1]?
100
This is the term for an equality expression that holds true for all values of the variable in the domain.
What is an identity?
200
The radian measure of this angle equals 225 degrees.
What is 5Π/4?
200
This is the general solution of 1=tanx.
What is x= Π/4 + Πn?
200
This is a simpler way of expressing this trig expression: cosxcosy + sinxsiny
What is cos(x-y)?
200
This is the range of the arctangent function.
What is [-Π/2, Π/2]?
200
This term describes functions like the trig functions that repeat.
What is periodic or cyclical?
300
This is the cosine of a QIII angle whose sine is -1/2.
What is -√3/2?
300
x=Π/6 + 2Πn, -Π/6 + 2Πn is the general solution to this equation.
What is cosx=√3/2?
300
This value of Q makes the following statement true: tan(Π/2 - Q) = cotQ
What is any value of Q?
300
The inverse cosine of a negative ratio gives an angle in this quadrant.
What is quadrant 2?
300
This is the frequency of a sound wave whose period is .001 seconds.
What is 1000 Hz?
400
This is the secant ratio of the angle whose sine is 1.
What is undefined?
400
DAILY DOUBLE! This is the general solution of cot2x=0.
What is Π/4 + Πn/2?
400
For these trig functions, f(-x) = f(x).
What are cosine and secant?
400
This is the sine of the inverse sine of -√2/2.
What is -√2/2?
400
This is the author of your textbook.
Who is Ron Larson?
500
At this quadrant two angle, the tangent and cotangent ratios are equal.
What is -3Π/4
500
This is the general solution of the equation sin3x=±Π/2
What is no solution?
500
If A=Π/12 and B=Π/4, sinA*cosB + cosA*sinB equals this.
What is √3/2?
500
This is equal to arccos(cos(7Π/2)).
What is Π/2?
500
This is a general expression for the values of x when secx is concave up.
What is ( (1/2)(4n-1)Π , (1/2)(4n+1)Π ) where n is an integer?
M
e
n
u