Sample from The Ultimate Crash Course for STEM Majors This lesson is a sample from The Ultimate Crash Course series. View the complete collection at https://payhip.com/authorjond [On Exams] Problems That Can Be Modeled by Linear Equations From the Michael Sullivan Algebra and Trigonometry Textbook Ninth Edition: https://amzn.to/3DtVB4X Computing Grades Going […]
Math Monthly
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Exact Equations in Differential Equations QUESTION [21] 2.6.7 Determine whether the equation is exact. If it is exact, find the solution. \[ \left(\frac{y}{x}+6x\right) + \left({\color{red}\ln x}-2\right)y’ = 0, \qquad x>0. \] ANSWER \[ y\ln x+3x^2-2y=c. \] Before we begin to solve this question, we should acknowledge the condition, $x>0$. What […]