# using figures and diagrams   298 videos

• #### Solving a Quadratic Inequality using a Sign Chart

##### Algebra 2Quadratic Equations and Inequalities

How to solve a quadratic inequality using a sign chart.

sign number line sign chart less than greater than quadratic inequality
• #### Solving Quadratic Equations Using Square Roots

##### Algebra 2Quadratic Equations and Inequalities

How to solve quadratic equations using square roots.

square root
• #### Derivatives from the Definition

##### AP Calculus ABAP Calculus Videos
Manual derivatives done using the definition

• #### Solving and Graphing Inequalities using Addition or Subtraction

##### AlgebraSolving and Graphing Inequalities

How to solve and graph one variable inequalities using addition or subtraction.

inequality notation
• #### Solving and Graphing Inequalities using Multiplication or Division

##### AlgebraSolving and Graphing Inequalities

How to solve and graph one variable inequalities using multiplication or division.

inequality notation solve
• #### Using the Sine and Cosine Addition Formulas to Prove Identities

How to use the sine and cosine addition formulas to prove the cofunction identities.

• #### Using the Sine and Cosine Addition Formulas to Prove Identities

How to use the sine and cosine addition formulas to prove the cofunction identities.

• #### Using Graphic Organizers to Review

##### AP US HistoryAP US History Review
G GREASES Review history by Era
• #### Using the Inverse Trigonometric Functions

How to evaluate expressions like tan(sin (4/5))^(-1).

sine cosine tangent inverse sine inverse cosine inverse tangent the unit circle

• #### Using the Inverse Trigonometric Functions

How to evaluate expressions like tan(sin (4/5))^(-1).

sine cosine tangent inverse sine inverse cosine inverse tangent the unit circle
• #### Using the Conjugate Zeros Theorem

##### PrecalculusPolynomial and Rational Functions

How we find the zeros of a polynomial function when one imaginary zero is known.

polynomial functions quadratic functions zeros multiplicity the conjugate zeros theorem the conjugate roots theorem conjugates imaginary numbers imaginary zeros
• #### Set Operation: Union

##### PrecalculusLinear Equations and Inequalities

How to define union.

Venn diagram union set operation or
• #### Set Operation: Intersection

##### PrecalculusLinear Equations and Inequalities

How to solve define intersection.

Venn diagram union set operation and
• #### Set Operation: Union

##### Algebra 2Linear Inequalities

How to define union.

Venn diagram union set operation or
• #### Set Operation: Intersection

##### Algebra 2Linear Inequalities

How to solve define intersection.

Venn diagram union set operation and
• #### Using the Pythagorean Theorem to find a Missing Hypotenuse

##### GeometryPythagorean Theorem

How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem.

Pythagorean theorem leg hypotenuse right triangle
• #### Using the Pythagorean Theorem to find a Missing Leg

##### GeometryPythagorean Theorem

How to use the Pythagorean Theorem to find a missing leg, given the length of the hypotenuse and a leg.

Pythagorean theorem leg hypotenuse right triangle
• #### Using the Pythagorean Theorem to find a Missing Hypotenuse

##### TrigonometryPythagorean Theorem

How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem.

Pythagorean theorem leg hypotenuse right triangle