Solved: In 9–20, determine whether the equation is exact.

Chapter 2, Problem 11E

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QUESTION:

In Problems 9–20, determine whether the equation is exact. If it is, then solve it.

\((\cos x \cos y+2 x) d x-(\sin x \sin y+2 y) d y=0\)

Equation Transcription:

Text Transcription:

(cos x cos y+2x)dx-(sin x sin y+2y)dy=0

Questions & Answers

QUESTION:

In Problems 9–20, determine whether the equation is exact. If it is, then solve it.

\((\cos x \cos y+2 x) d x-(\sin x \sin y+2 y) d y=0\)

Equation Transcription:

Text Transcription:

(cos x cos y+2x)dx-(sin x sin y+2y)dy=0

ANSWER:

Solution :

Step 1 :

In this problem first determine the given equation is exact, if it is exact then find the solution.

Given equation is

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