Please help 3cot²(x-5) = 1 Find x Thanks?

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2016-05-11 5:59 am

回答 (1)

ted s

2016-05-11 6:22 am

cot ( x - 5 ) = ± 1 / √3 ---> x - 5 = π / 3 , 2π / 3 , 4π / 3 5 π / 3..all plus 2nπ

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