perplexus.info :: Just Math : Arithmetic inverse trigonometry

Arithmetic inverse trigonometry (Posted on 2021-07-07)

Find arctan(tan 15° * tan 21° * tan 27°).

No Solution Yet Submitted by Danish Ahmed Khan

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	Subject	Author	Date
	By Scientific Hand Calculator	K Sengupta	2022-05-14 22:46:05

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