Prove that sec x dx = In sec x + tan x + C. (Hint: Multiply the numerator and denominator of the integrand by sec x+ tan x; then make a change of variables u = secx+tan x.) Evaluate the left side. Multiply the numerator and denominator of the integrand by sec x + tan x and expand in th numerator. sec x( sec x + tan x) dx sec x dx sec x + tanx %3D dx sec x+ tan x (Simplify your answer.)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.5: The Binomial Theorem
Problem 37E
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Prove that
sec x dx = In sec x+ tan x + C. (Hint: Multiply the numerator and denominator of the integrand by
sec x+ tan x; then make a change of variables u = sec x + tan x.)
Evaluate the left side. Multiply the numerator and denominator of the integrand by sec x+ tan x and expand in the
numerator.
sec x( secx+ tan x)
dx
%3D
sec x dx =
sec x+ tan x
S.
dx
sec x + tan x
(Simplify your answer.)
Transcribed Image Text:Prove that sec x dx = In sec x+ tan x + C. (Hint: Multiply the numerator and denominator of the integrand by sec x+ tan x; then make a change of variables u = sec x + tan x.) Evaluate the left side. Multiply the numerator and denominator of the integrand by sec x+ tan x and expand in the numerator. sec x( secx+ tan x) dx %3D sec x dx = sec x+ tan x S. dx sec x + tan x (Simplify your answer.)
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