perplexus.info :: Just Math : Consecutive cosines

Consecutive cosines (Posted on 2023-12-20)

Prove

1/(cos 0 * cos 1) + 1/(cos 1 * cos 2) + ... + 1/(cos 88 * cos 89) = cos 1/sin² 1

No Solution Yet Submitted by Danish Ahmed Khan

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	Subject	Author	Date
	observation -- probably obvious -- not a proof	Charlie	2023-12-20 11:23:04

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