sum of an arithmetic sequence 34 videos

The Sine Addition Formulas
Trigonometry Advanced Trigonometry
How to derive the sine of a sum formula.
cosine of a difference formula the cofunction identities the sine of a sum formula 
The Sine Addition Formulas
Precalculus Advanced Trigonometry
How to derive the sine of a sum formula.
cosine of a difference formula the cofunction identities the sine of a sum formula 
Inductive Reasoning
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to define inductive reasoning, and how to find numbers in a sequence.
inductive reasoning deductive reasoning patterns Fibonacci sequence. 
Exterior Angles of a Polygon
Geometry Polygons
How to find the sum of the exterior angles in a polygon and find the measure of one exterior angle in an equiangular polygon.
exterior angle sum of angles equiangular polygon 
Factoring Greatest Common Factor
PreAlgebra Polynomials
Factoring is turning a sum or difference into a product

Supplementary and Complementary Angles
Geometry Geometry Building Blocks
How to identify supplementary and complementary angles.
angles sum right angle 
Top 5 Things to Study for the PSAT
PSAT PSAT Prep
Learn the areas you should review to get the best PSAT score
Arithmetic Algebra I or Geometry Vocabulary Pronouns 
Additive and Multiplicative Inverses
Algebra PreAlgebra
How to find additive and multiplicative inverses.
additive inverse multiplicative inverse product sum 
The DoubleAngle Formulas
Trigonometry Advanced Trigonometry
How to use the sine and cosine addition formulas to prove the doubleangle formulas.
the sine of a sum formula the cosine of a sum formula the sine double angle formula the cosine double angle formula 
The DoubleAngle Formulas
Precalculus Advanced Trigonometry
How to use the sine and cosine addition formulas to prove the doubleangle formulas.
the sine of a sum formula the cosine of a sum formula the sine double angle formula the cosine double angle formula 
Approximating Area Using Rectangles
Calculus The Definite Integral
How to approximate the area under a curve using rectangles.
approximating area under a curve left hand sums right hand sums limits 
Addition and Scalar Multiplication of Vectors
Precalculus Vectors and Parametric Equations
How to compute the sum of two vectors or the product of a scalar and a vector.
vector components horizontal component vertical component component form vector addition the zero vector scalar multiplication 
Derivatives of Polynomial Functions
Calculus The Derivative
How to compute the derivative of a polynomial function using two properties of the derivative.
the constant multiple rule the sum rule of derivatives polynomial functions derivative 
Review of the Methods of Factoring
Algebra 2 Factoring
How to use the different methods to factor a polynomial.
factoring greatest common factor grouping factoring trinomials different of cubes sum of cubes