PreCalc

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Sequence and Series

Background Knowledge

Probability

Limits

Polynomial Functions and Optimization

Exponential Functions`

Arithmetic Sequence and Series

Common difference d


General Term a_n

Explicit rule 43803B27-908C-4D81-B4A4-24636F9E5D72

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Problems in Motion

Geometric Sequence and Seriese

Arithmetic Series

5.1 Quadratic functions

Definition AA4C2667-EE41-46D6-AEA4-5441BD08162B

vertex

axis of symmetry

x-ints

y-int

domain

range

Forms

Standard form

Intercept form

Vertex form

Parabola and imaginary roots

Complex number

Higher degree Poly and Intermediate Value Theorem

Turning Points

End behavior

Graph of polynomal

Intermediate Value Threoem

Long division

Steps for long division

Equivalence of notions

Root

x-corssing

P(a) = 0

factor

remainder of division

Remainder theorem

Factor theorem

Operation of complex numbers

Real part vs. imaginary part

Standard form

Rational Functions

Complex conjugate

Limits

f(x) = N(x)/D(x) where N(x) and D(x) are polynomial functions and D(x) != 0

(a^2 - b^2) = (a+b)(a-b)

Complex roots

Comlex Zeros Theroem

Polynormal Inequalities and optimization

The limit of 𝑓(π‘₯)as π‘₯approaches π‘Ž from the left is denoted by π₯𝐒𝐦𝒙→𝒂!𝒇(𝒙)
The limit of 𝑓(π‘₯) as π‘₯ approaches π‘Ž from the right is denoted by π₯𝐒𝐦𝒙→𝒂!𝒇(𝒙)
A function 𝑓(π‘₯) will have a vertical asymptote at π‘₯=π‘Ž if:
‒𝑓(π‘Ž)is undefined, and
β€’π₯𝐒𝐦𝒙→𝒂!𝒇(𝒙)=±∞ or π₯𝐒𝐦𝒙→𝒂!𝒇(𝒙)=±∞
A function 𝑓(π‘₯)will have a horizontal asymptote at 𝑦=𝑏 when:
π₯𝐒𝐦𝒙→ ∞ 𝒇(𝒙)=𝒃
π₯𝐒𝐦𝒙→ -∞ 𝒇(𝒙)=𝒃

Unit 8: Problems in Motion

Lesson 1: Vector and parametric equations for a line

The velocity vector (a, b)

Speed

Parametric equations of a line with parameter t

x=k_1 t+b_1

y=k_2 t+b_2

Vector equations of a line

(x,y)=(b_1, b_2 )+(k_1,k_2 )β‹…t

Eliminating the parameter

Get rid of the parameter "t" through substitution or elimination

Write in rectangular form aka in terms of x and y

Lesson 2: The Dot product and angles between vectors

Vector (向量): magnitude and direction

Draw a vector from a starting point

Dot product

a=(a_x, a_y ), b=(b_x, b_y ), a β‹…b=a_xΓ—b_x+a_yΓ—b_y

Angle between vectors

aβ‹…b=|a| Γ— |b| Γ— cos⁑(ΞΈ)

cos⁑(ΞΈ)=(aβ‹…b)/(|a| Γ— |b|)

Perpendicular vectors

aβ‹…b=0

Parallel vectors

a=k Γ— b

b=k Γ— a

Lesson 3: Modeling vertical motion

Vertical motion (in feet)

h(t)=βˆ’16t^2+v_0 t+s_0

Velocity: rate of change of displacement

Is the derivative of h(t) aka v(t) = h'(t)

v(t)=βˆ’32t+v_0

Acceleration: rate of change of velocity

Is the derivative of v(t) aka a = v'(t)

a=βˆ’32 feet per second squared

Lesson 4: Piecewise Parametric Equations

t_1 (x_1,y_1 ) t_2 (x_2,y_2)

(x,y)=(x_1,y_1 )+(x_2 βˆ’x_1, y_2 βˆ’γ€– yγ€—_1 ) (tβˆ’t_1)/(t_2βˆ’t1 ), γ€– tγ€—!≀t≀t_2

Lesson 5: Parametric equations for parabolas, circles, and ellipses

Parametric equation for circle

Parametric equation for parabolas

Parametric equation for ellipses

Simplify to rectangular form

Change moving direction in parametric form

List a table of 0,Ο€/2, Ο€,3Ο€/2, 2Ο€, observe the movement of x direction and y direction, decide which one to flip

Lesson 6: Applications of non-linear parametric equations

Lesson 7: Problem solving with 3D vectors