actionoflove actionoflove

13-12-2020
Mathematics

contestada

tan-1 1/5+ tan-1 1/7 + tan-1 1/3 + tan-1 1/8 = π/4

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Аноним Аноним

13-12-2020

Answer:

true?

Step-by-step explanation:

what were you looking for exactly... but it is true

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