Please enable JavaScript.
Coggle requires JavaScript to display documents.
Mathematical Methods - Coggle Diagram
Mathematical Methods
Algebra, the study of relationships
-
Arithmetic
- Basic operations(addition, subtraction etc;)
- N: Counting numbers
- Z: Integers
- Q; Rational numbers
- Q': Irrational numbers
- R: Real numbers
- I: Imaginary numbers
- C: Complex numbers
Find unknowns using knowns:
Algebraic expansion identities:
- (a+b)^2 = a^2 + 2ab+ b^2
- (a+b)^3 = a^3 + 3a^2b+3ab^2+b^3
- a^2-b^2= (a+b)(a-b)
- a^3+b^3= (a+b)(a^2-ab+b^2)
-
-
-
-
Geometry, the study of shapes
Measurement
Length, area, volume, units etc;
Studying geometric shapes like square, triangles, rectangles and functions
-
-
Areas:
- Rectangles: b*h
- Triangles: (1/2)bh = (1/2)bc*sin(theta)
Trigonometry
-
The Unit Circle
- Sine, cosine and tangent are periodic functions
- Has an angle which is measured from the positive x-axis
-
Symmetry properties(that yield the same result depending on base angle in first quadrant and sign of quadrant):
- Q1: theta
- Q2: pi-theta
- Q3: pi + theta
- Q4: 2*pi-theta
-
Signs:
- Sine is positive in Q1, 2 and negative in Q3, 4
- Cosine is positive in Q1, 4 and negative in Q2, 3
- Tangent is positive in Q1, 3 and negative in Q2, 4
-
Probability, the study of uncertainty/chance
-
Calculus, the study of change
-