Suppose $f ( x ) = ( \sec x + \tan x ) ( \sec x - \tan x )$ (a) Use the product rule to differentiate $f ( x )$ (b) What does the value of the derivative tell you?
(c) How can you arrive at this simple result more quickly?

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The Answer of Suppose $f ( x ) = ( \sec x + \tan x ) ( \sec x - \tan x )$ (a) Use the product rule to differentiate $f ( x )$ (b) What does the value of the derivative tell you?
(c) How can you arrive at this simple result more quickly?

Suppose f(x)=(sec⁡x+tan⁡x)(sec⁡x−tan⁡x)f ( x ) = ( \sec x + \tan x ) ( \sec x - \tan x )f(x)=(secx+tanx)(secx−tanx)

Suppose $f ( x ) = ( \sec x + \tan x ) ( \sec x - \tan x )$