What is the final value of the following expression: a. Evaluate the expression using your calculator (5 - 15/2*3 + (3 + 2/4)) - 5 Answer: _____ b. Evaluate the expression the way C++ would do the evaluation. (5 - 15/2*3 + (3 + 2/4)) - 5 Answer: _____ Write the following expression in C++ format. The cmath library contains a built-in function called squareroot and it's format is squareroot (expression). In all programming languages all operations must be explicitly defined. For example, it is common in algebra to have 3x + 2y. This has to be expressed in C++ as follows: 3*x + 2*y, otherwise it would be classified as an unknown identifier. In addition, C++ does not have exponentiation operator. Therefore, c^2 should be written as c*c. E = mc^2/squareroot 1 - v^2/c^2 C++ Expression: _____ What is the preprocessor directive that must be included for cin and cout to be used in a C++ program? Answer. _____ Blank spaces, tabs, and newlines in an input line or data file are referred to as The > in a cin statement is called the operator