How do you find the derivative of $1 + tan x$ $1 + tanx$ ?

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How do you find the derivative of $1 + tan x$ $1 + tanx$ ?

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Answer 1 · 2017-03-21T13:23:30

As differentiation is linear:

$\frac{d}{d x} (1 + tan x) = \frac{d}{d x} (1) + \frac{d}{d x} (tan x) = 0 + \frac{1}{{cos}^{2} x} = \frac{1}{{cos}^{2} x}$ $d/dx (1+tanx) = d/dx (1) + d/dx (tanx) = 0+1/cos^2x= 1/cos^2x$

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How do you find the derivative of $1 + tan x$ $1 + tanx$ ?

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How do you find the derivative of $1 + tan x$ $1 + tanx$ ?