Name the only two even trigonomteric functions.
Cosine and Secant
Re-write
tan theta
using a quotient idenity.
sin theta/cos theta
When solving an oblique triangle, which case is considered ambiguous?
SSA
Identify the center of this ellipse.
(x+1)^2/9+(y-2)^2/4=1
(-1, 2)
Evaluate the sum using a calculator.
sum_(i=3)^6 (4i-5)
52
Given
,
find
cos t
cos t = sqrt(3)/2
Explain how you know which sign (+ or -) to use for the half-angle formula.
The sign depends on which quadrant the half-angle is in.
When solving a SSS triangle, which law MUST be applied to solve the triangle?
Law of Cosines
y^2/25-x^2/49=1
What is the value of "b" in the following equation?
b=7
Find the fifth term in the expansion.
(3x+5)^5
9375x
Name the quadrant where tangent is positive and cosine is negative.
Quadrant III
State the Pythagorean Identity that can be used to derive the other two Pythagorean Identities.
sin^2x+cos^2x=1
In Triangle DEF, angle D= 72 and angle F= 87. Find the measure of angle E.
angle E= 21
Identify the conic WITHOUT completing the square.
2x^2-3y^2+2y-17=0
Hyperbola
Lisa has 4 skirts, 10 blouses, and 3 jackets. How many 3-piece outfits can she put together assuming any piece goes with any other?
120
Determine the phase shift of the following:
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-pi/2
Find all solutions to the equation
5 sinx =3 sin x + sqrt (3)
pi/3+2npi
and
(2pi)/3+2npi
If two vectors have a Dot Product equal to 0, what conclusion can be made about the vectors?
The vectors are orthogonal.
Find the coordinate point of the focus of this parabola.
(x-2)^2=4(y+1)
(2,0)
If you roll a single, six-sided die, what is the probability of getting a number greater than 3?
3/6 or 1/2
Find the exact value of 
-pi/4
Solve the equation on the interval [0, 2π).
cos 2x= sqrt(2)/2
pi/8, (7pi)/8, (9pi)/8, (15pi)/8
![]()
w-v
-3i-8j
Convert the equation to standard form by completing the square on y.
y^2+2y+12x-23=0
(y+1)^2=-12(x-2)
A brick staircase has a total of 12 steps The bottom step requires 100 bricks. Each successive step requires 4 fewer bricks than the prior one. How many bricks are required to build the staircase?
936 bricks