Some of the Maths topics that Engineering Students need to learn are:
- Fourier Series
- Laplace Transform
- Total and Partial Differentiation
- Line Integral
All the above topics are rather challenging and deep. Fortunately, for most engineering students, application of the theorems would suffice, the deep proofs are not really necessary. It would be good to know them though.
This is the book you are looking for, if you are looking for a book to help ace Engineering Maths.