d Prove that sec x tan x. sec x dx - 3.

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Problem 3.**

Prove that 

\[
\frac{d}{dx} \sec x = \sec x \tan x.
\]
Transcribed Image Text:**Problem 3.** Prove that \[ \frac{d}{dx} \sec x = \sec x \tan x. \]
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