June 21, 2017 Exam Flashcards
What is the domain of any tanx equations like y = 2tan + 5?
D:{0ER, θ ≠ ((2k + 1)/2) π, KEI}
What is the range of any tanx equations like y = 2tan + 5?
R:{yER}
When tanΘ is ±√1/8, how many solutions are there given the restriction,
4
iN TERMS OF COS, RANK THE FOLLOWING FROM BIGGEST TO SMALLEST
√2/2
0
1
1/2
√3/2
1
√3/2
√2/2
1/2
0
What does it mean if a number is irrational?
The number is not a perfect square or the number repeats over and over
What does it mean if a number is rational?
The number is a perfect square or the number does not repeat over and over
CIRCLE formula for area
CIRCLE formula for circumference
Quadratic formula
What letter is the axis of symmetry (In terms of making an equation with transformation)?
Axis of symmetry is x so c or h
What letter is the “stretched by a factor” (In terms of making an equation with transformation)?
Horizontally is the b
Vertically is the a
What letter is the maximum (In terms of making an equation with transformation)?
Talking about vertical language so not x
D or k
What letter is the minimum (In terms of making an equation with transformation)?
Talking about vertical language so not x
D or k
Vertex formula 3
Or
Or
Without a calculator, explain the difference between the equation and expression below.
cosΘ = 0
and
cos0°
cosΘ = 0
We need to solve for the angle
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Θ = 90° and 270°
cos0°
We have to solve for cos of 0°
We need to solve the x coordinate of the angle
======================
Discriminant of Formula?
Which of the following statement is false?
The unit circle has:
a) Centre (0,0)
b) Diameter of π/2
c) Radius of 1
d) Circumference, around a circle is 2π
b) Diameter of π/2
If you were given angle, let’s say 53°, how do you find another angle, let’s say with the same cos value?
You use Add Sugar To Coffee or All Snow Taste Cold and find you other values.
Cosine formula for getting the lengths or angles?
Sine formula for getting the lengths or angles?
