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∫sec^2 x / √ tan x +1 dx
人气:481 ℃ 时间:2020-01-31 05:53:43
解答
∫sec^2 x / √ (tan x +1 )dx
=∫1 / √ (tan x +1 )d(tan x)
=2√ (tan x +1 )+C
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