Relation between exponential and logarithmic functions
Logarithmic notation: logb(x)
Base b in logarithmic equations
Domain and range of logarithmic functions
Properties of Logarithms
Product rule: logb(xy) = logb(x) + logb(y)
Quotient rule: logb(x/y) = logb(x) - logb(y)
Power rule: logb(xn) = n * logb(x)
Change of base formula: logb(x) = logc(x) / logc(b)
Common Logarithms and Natural Logarithms
Common logarithm: log(x), base 10 logarithm
Natural logarithm: ln(x), base e logarithm
ln(x) as the inverse of e^(x)
Evaluating logarithms using calculators
Logarithmic Equations
Solving logarithmic equations
Isolating the logarithm on one side
Changing the equation into exponential form
Solving for the variable
Example: Solve log4(x-1) = log2(x-3)
Logarithmic Inequalities
Solving logarithmic inequalities
Differentiating between logarithmic equations and inequalities
Interval notation for solutions
Graphical representation of logarithmic inequalities
Exponential Functions
Definition of exponential functions
Graphs of exponential functions
Exponential growth and decay
Exponential equations
Solving exponential equations
Exponential Growth and Decay
Exponential growth: y = a * bx (b > 1)
Exponential decay: y = a * bx (0 < b < 1)
Finding growth/decay factors and initial values
Applications of exponential growth and decay
Exponential Equations
Solving exponential equations
Using logarithms to solve exponential equations
Logarithmic properties for solving exponential equations
Common types of exponential equations
Logarithmic - Example – Solve for x
Given: log4(x-1) = log2(x-3)
To solve this equation, we can set the expressions inside the logarithms equal to each other:
x - 1 = x - 3
Simplifying, we find:
4 = 2
Since the equation does not hold true, there is no solution for x in this case.
Trigonometry
Definition of trigonometric functions
Sine, cosine, and tangent functions
Trigonometric ratios
Unit circle and trigonometric values
Trigonometric identities
Trigonometric Functions
Evaluating trigonometric functions
Special angles and their values
Using reference angles
Periodicity of trigonometric functions
Trigonometric functions on the unit circle
Example: Find sin(45 degrees)
Applying trigonometric identities to simplify equations
Checking for extraneous solutions
Multiple solutions to trigonometric equations
Example: Solve sin(x) = cos(x)
Complex Numbers
Definition of complex numbers
Imaginary unit: i = sqrt(-1)
Complex numbers in rectangular form
Complex numbers in polar form
Operations with complex numbers
Rectangular and Polar Forms
Converting from rectangular to polar form
Finding the magnitude and argument of a complex number
Converting from polar to rectangular form
Euler’s formula: e^(ix) = cos(x) + isin(x)
De Moivre’s theorem: (cos(x) + isin(x))^n = cos(nx) + isin(nx)
Example: Convert 3 + 4i to polar form
Operations with Complex Numbers
Addition and subtraction of complex numbers
Multiplication and division of complex numbers
Properties of complex numbers
Complex conjugates and their properties
Powers and roots of complex numbers
Example: Simplify (2 + i)(3 - 2i)
Sequences and Series
Definition of sequences and series
Arithmetic sequences and series
Geometric sequences and series
Formulas for the nth term and sum of each type
Sums of infinite geometric series
Example: Find the sum of the arithmetic series 2 + 5 + 8 + … + 23
Arithmetic Sequences
Defining arithmetic sequences
Formula for the nth term of an arithmetic sequence
Formula for the sum of an arithmetic sequence
Solving problems involving arithmetic sequences
Applications of arithmetic sequences in real life
Example: Find the common difference of an arithmetic sequence if the first term is 5 and the fifth term is 20
Geometric Sequences
Defining geometric sequences
Formula for the nth term of a geometric sequence
Formula for the sum of a geometric series
Solving problems involving geometric sequences
Applications of geometric sequences in real life
Example: Find the sum of the geometric series 3 + 9 + 27 + … + 6561
Matrices
Definition and notation of matrices
Types of matrices: square, rectangular, diagonal, identity, zero