Let the solution curve of the differential equation pass through the origin. Then is equal to ____.
Answer: 12
Solution
Rewrite the differential equation as:
This is a first-order linear ODE. The integrating factor is:
Multiplying and integrating:
Let , then :
Using the initial condition :
Thus:
At :
This is a first-order linear ODE. The integrating factor is:
Multiplying and integrating:
Let , then :
Using the initial condition :
Thus:
At :
JEE Main · 2022 · 26 Jun 2022 · Shift 1 · Integer answer