Ok this topic has been bugging me and I wanna experiment here in this topic if you don't mind. I'll just give it as a test drive.
Basically I have these 8 problems that relate to a high level Math/Finance course (Theory of Interest), Actuarial Science level Math here, and these problems relate to these respective chapters in my textbook: Measuring Interest, Solving Problems in Interest, Annuities, and Amortization. Let's start with the first question here.
At the same rate of non-zero interest, the present value of a level payment annuity-immediate of 6n payments of $R is 7/2 (or 3.5x) the present value of a 2n payment annuity-immediate with the same payment. What’s the present value of an annuity of 12n payments of $R in terms of the present value of the annuity of n payments?
For all you people struggling in lower level Math courses like Algebra and Geometry, they are nothing compared to Real Math (e.g. Linear Algebra, Abstract Algebra, Real Analysis, Probability and Statistics, and Theory of Interest) where every topic is so abstract and theoretical to the point of making your head spin. It would make you question if you really are a Math expert as you say you are. No wonder some Mathematicians suck at doing the kind of Math the common average person is familiar.
The Math I've been learning all my life is a lie (just like cake). I used to believe I was good at Math, but now... I'm not so sure anymore.