Question:medium

The differential equation \(\frac{dy}{dx} = -\left(\frac{x+y}{1+x^2}\right)\) is

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When classifying a differential equation, always try to rearrange it into the standard linear form \(\frac{dy}{dx} + P(x)y = Q(x)\) first, as it's a very common type. If terms can be separated into functions of only x and only y, it's linear.
  • of Variable separable form
  • First order Linear equation
  • Homogeneous
  • Exact differentia Equation
Show Solution

The Correct Option is B

Solution and Explanation

Step 1: Understanding the Question:
Solve dy/dx = 1+y².

Step 2: Key Formula (Alternate):
Separate variables: dy/(1+y²) = dx. Integrate both sides.

Step 3: Detailed Explanation:
∫dy/(1+y²) = ∫dx → tan⁻¹y = x+c → y = tan(x+c).

Step 4: Final Answer:
Solution is y = tan(x+c).
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