. Answer these questions involving mathematical expression and arithmetic operators. (A) Write the C++ expression dm = m * (sqrt (1+v/c) / sqrt (1-v/c) -1); as a functionally equivalent expression in mathematical notation. [5 oints (B) write the mathematical expression FV = PV (1 + )' as a func- ionally equivaleit C++ expression. FV denotes the future value, PV, the present value, rate, the annual interest rate paid, and t, the number of years over which the investment is held. 15 points)