Tan^2X (1 Viewer)

[starlitwonder]

Help! How do I differentiate y=Tan^2X

 

[SoulSearcher]

Chain rule, I would think
y = tan²x = (tan x)²
Therefore
y' = 2 tan x * d/dx(tan x)
= 2 tan x * sec²x

 

[sasquatch]

Very simply:

Let y = tan²x
= [tanx]²

dy/dx = 2[tanx]sec²x

EDIT: well i see someone beat me... not my fault im a couple seconds slow...