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9. Dave was simplifying a trig expression using the following steps: tan x1+cot² x tan x csc? Step #1 cot x1+ tanx cot x sec? x Step #2 tan x cos? %3D cot x sin? x cos x Step #3 %3D sin? Step #4 cot x %3D Dave made his first error in step #

9. Dave was simplifying a trig expression using the following steps: tan x1+cot² x tan x csc? Step #1 cot x1+ tanx cot x sec? x Step #2 tan x cos? %3D cot x sin? x cos x Step #3 %3D sin? Step #4 cot x %3D Dave made his first error in step #

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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9. Dave was simplifying a trig expression using the following steps: tan x 1+ cot? x tan x csc? xr Step #1 cotx1+ tan²x cot x sec? x Step #2 tan x cos x cot x sin? x cos? (1 sin? x Step #3 Step #4 cot x Dave made his first error in step #.
Transcribed Image Text:9. Dave was simplifying a trig expression using the following steps: tan x 1+ cot? x tan x csc? xr Step #1 cotx1+ tan²x cot x sec? x Step #2 tan x cos x cot x sin? x cos? (1 sin? x Step #3 Step #4 cot x Dave made his first error in step #.
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