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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
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Wolfram
MathWorld
)
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"
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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