A Sine/Cosine Identity
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This Demonstration looks at the trigonometric identity . We plot the functions
(red curves),
(orange curves), and compare the plots of the functions
(black, on the left) and
(black, on the right); when
, they are the same.
Contributed by: Jon Perry (March 2011)
Open content licensed under CC BY-NC-SA
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"A Sine/Cosine Identity"
http://demonstrations.wolfram.com/ASineCosineIdentity/
Wolfram Demonstrations Project
Published: March 7 2011