$\int e^x(2021+\tan x+\tan^2 x) dx = $ . . . . . . $+ C$.

  • A
    $(2021+\tan x) e^x$
  • B
    $(2020+\tan x)$
  • C
    $(2020+\tan x) e^x$
  • D
    $(2000+\tan x) e^x$

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