For solving $\frac{d y}{d x}=4 x+y+1$, suitable substitution is :
Answer & explanation
Correct answer: option 4
y + 4x + 1 = v
Hence (4) is the correct answer.
For solving $\frac{d y}{d x}=4 x+y+1$, suitable substitution is :
Correct answer: option 4
y + 4x + 1 = v
Hence (4) is the correct answer.