Зл 0, п, sin 1 has the solution x COs 2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.3: Quadratic Equations
Problem 37E
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For the attached picture with the equation, decide whether the answer to each problem is correct.  If it is not, identify the issue and solve it correctly for 0 ≤ x < 2 π.  You must show work for this, all answers should be in radians.

Зл
0, п,
sin
1 has the solution x
COs
2
Transcribed Image Text:Зл 0, п, sin 1 has the solution x COs 2
Expert Solution
Step 1

Given,

cos x-sin x= 1, 0<x<2T
Step 2

It is known that,

cos (x)-sin (x) 2cosx
Step 3

Then,

-1+cos
0
+x
4
+x2
+ x
cos
4
cos x
4
2
Зл
х%3D 2лп,х%3D2лп+
2
For the range 0<x<27
Зл
2
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