engineering recuitment GATE ME 2023-24 Test Series Engineering Mathematics Differential Equations Initial and Boundary Value Problems
If the differential equation corresponding to the family of curves Y = (A + Bx) e3x is given by
\(\frac{{{d^2}y}}{{d{x^2}}} = a\frac{{dy}}{{dx}} + by,\) then (a - b) is _____
1
6
2
9
3
15
4
-3