If is the solution of the differential equation ; then is equal to :
- (A)✓ Correct
- (B)
- (C)
- (D)
Answer: (A)
Solution
Rewrite as . This is a first-order linear ODE. The integrating factor is .
Multiplying through: . Integrating by parts: .
Thus . Using : , so . Therefore .
At : .
Multiplying through: . Integrating by parts: .
Thus . Using : , so . Therefore .
At : .
JEE Main · 2022 · 24 Jun 2022 · Shift 1 · Single correct option