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Two Visual Proofs of a Basic Trigonometric Identity
This Demonstration shows two visual proofs of the identity
.
Contributed by:
Izidor Hafner
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Trigonometry
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
Two Visual Proofs of a Basic Trigonometric Identity
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/TwoVisualProofsOfABasicTrigonometricIdentity/
Contributed by:
Izidor Hafner
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Related Topics
Plane Geometry
Theorem Proving
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Related Curriculum Standards
US Common Core State Standards, Mathematics
HSF-TF.C.8
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