2tanx2 \sqrt{\tan x}2tanx
tanxln(cos2x)\sqrt{\tan x} \ln \left(\cos ^{2} x\right)tanxln(cos2x)
sinxtanx\sin x \sqrt{\tan x}sinxtanx
23(tanx)3/2\frac{2}{3}(\tan x)^{3 / 2}32(tanx)3/2