# unit circle definitions of sine and cosine   7 videos

• #### The Circle

##### Algebra 2Conic Sections

How to use the distance formula to derive the equation for a circle.

circle center radius distance formula equation for a circle
• #### Circle Tic Tac Toe Fun

How to beat your teacher at circle tac tac toe.

games fun math circle tic tac toe
• #### Definition of Inverse

##### Algebra 2Inverse, Exponential and Logarithmic Functions

How to define an inverse.

inverse
• #### Definition and Domain of a Rational Expression

##### Algebra 2Rational Expressions and Functions

How to define a rational expression.

rational expression domain
• #### Definition of One-to-One Functions

##### Algebra 2Inverse, Exponential and Logarithmic Functions

How to define a one-to-one function.

one to one function
• #### Introduction to Conic Sections

##### Algebra 2Conic Sections

How to create the different conic sections.

parabola circle ellipse oval hyperbola cone plane
• #### Conic Section Formulas

##### Algebra 2Conic Sections

How to identify a conic section by its formula.

parabola circle ellipse hyperbola center focus