Let f be a differentiable function such that
, . Then is equal to ____.
, . Then is equal to ____.
Answer: 19
Solution
Differentiating the given relation with respect to :
Dividing by :
This is linear: , with integrating factor .
To fix , evaluate the original equation at : .
Dividing by :
This is linear: , with integrating factor .
To fix , evaluate the original equation at : .
JEE Main · 2025 · 24 Jan 2025 · Shift 1 · Integer answer