11087
EXPLORE
LATEST
ABOUT
AUTHORING AREA
PARTICIPATE
Your browser does not support JavaScript or it may be disabled!
Squares of Sine and Cosine
This Demonstration shows formulas for the square of sine and cosine (which are also known as half-angle formulas):
,
.
Contributed by:
Izidor Hafner
THINGS TO TRY
Slider Zoom
Automatic Animation
SNAPSHOTS
RELATED LINKS
Trigonometry
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
Squares of Sine and Cosine
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/SquaresOfSineAndCosine/
Contributed by:
Izidor Hafner
Share:
Embed Interactive Demonstration
New!
Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site.
More details »
Download Demonstration as CDF »
Download Author Code »
(preview »)
Files require
Wolfram
CDF Player
or
Mathematica
.
Related Demonstrations
More by Author
Two Visual Proofs of a Basic Trigonometric Identity
Izidor Hafner
Dissection Proof of the Addition Formula for Sines
Izidor Hafner
Cosine and Sine of the Sum of Two Angles
Tomas Garza
Cofunction Identities for Sine and Cosine
Chris Boucher
Difference Formula for Cosine
Chris Boucher
A Visual Proof of the Double-Angle Formula for Sine
Chris Boucher
A Special Case of the Sum of Two Cosines
Izidor Hafner
Dudeney's Proof of the Pythagorean Theorem
Izidor Hafner
Wrapping the Number Line around the Unit Circle
Marc Brodie (Wheeling Jesuit University)
Minimum Area between a Semicircle and a Rectangle
Abraham Gadalla
Related Topics
Plane Geometry
Theorem Proving
Trigonometric Functions
Browse all topics
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to
Mathematica Player 7EX
I already have
Mathematica Player
or
Mathematica 7+