tan x lim /2 3/(2r – T)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 67E
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Evaluate the following limit. Use l’Hôpital’s Rule when it is convenient and applicable.

tan x
lim
/2 3/(2r – T)
Transcribed Image Text:tan x lim /2 3/(2r – T)
Expert Solution
Step 1

Evaluate:

limxπ2tanx3(2x-π)

Step 2

So,

limxπ2tanx3(2x-π)=limxπ2(2x-π)3cotx

On applying the limit we get indeterminant (0/0) form, so using L'Hospital rule,

limxπ2(2x-π)3cotx=limxπ2ddx(2x-π)ddx3cotx=limxπ22-3csc2xapply the limit,=2-3csc2π2=-23

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