Fizaa A.

asked • 08/19/20

Please help with 1st-order equations

From below choices, select all 1st-order equations that can be classified as an Exact ODE.

A.)LaTeX: \frac{1 + x \, y}{x} \cdot  d x \, + \, (\frac{1}{y} \, + \, x) \, d y = 0.


B.)LaTeX: f(x) \, d x \, - \, d y = 0, \quad f(x) \quad \mbox{is a differentiable function.}

C.)LaTeX: 2 \, y \, \sin \, x \, d x \, + \, y^2 \, \cos \, x \,  d y = 0.

D.)LaTeX: x^2 \, y \cdot d x + \, y^2 \, x\cdot d y = 0

2 Answers By Expert Tutors

By:

Yefim S. answered • 08/19/20

Tutor
5 (20)

Math Tutor with Experience

David U. answered • 08/19/20

Tutor
5 (1)

Scientist, Math PhD and Physics PhD, tutoring students/professionals

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.