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In a differential equation, what type of unknown does yyy represent?

A

The complete family solving dydx=2xy\frac{dy}{dx}=2xydxdy​=2xy is y=Aex2\boxed{y=Ae^{x^2}}y=Aex2​, including y=0y=0y=0 when A=0A=0A=0.

B

It includes negative values of yyy as well as positive ones.

C

An unknown function, not a single number.

D

The antiderivative of 1y\frac{1}{y}y1​ is ln⁡∣y∣+C\boxed{\ln|y|+C}ln∣y∣+C​.

Card 1 of 20

1.8.11 Differential equations with separable variables (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.8.11 Differential equations with separable variables (A-level only)

20 flashcards on OCR A Level Maths 1.8.11 Differential equations with separable variables (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards