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Hint Spoiler: Use the infinite product expression for the sine function.
Originally Posted by Random Variable Evaluate I'm not certain of the series. Is this in the form:
You're making it too complicated.
It's equivalent to
Now write it as the product of an infinite product for the odd terms and a infinite product for the even terms.
Originally Posted by Random Variable You're making it too complicated. Making things too complicated is my middle name.
I'm going to post a solution, but there may be other approaches.
Now use the identity .
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