Solve the differential equation with the initial condition .
Answer and explanation
Correct answer: B.
- Step 1: Separate variables: .
- Step 2: Integrate both sides: .
- Step 3: Exponentiate both sides: , where .
- Step 4: Use the initial condition : .
- Step 5: The particular solution is .
Answer
.
Why not the others: '' treats as independent of ; '' forgets to integrate ; '' adds the initial condition as a constant term instead of multiplying.
Practise more Integration.
Free questions with an explanation for every one, and full timed AP (Advanced Placement) mock tests.