om the user, prints their sum and product in scientific otation, and prints their sum and product in fixed point otation. Print answers to three decimal places.

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A: The complete code is given below with output:

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A: The C++ code is given below with output screenshot

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A: Here is your solution -

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A: Answer in next Step

Header files

A file with an extension that has some predefined declarations and definitions is called a header file. Every computer program imports a set of header files to perform common tasks such as getting input, displaying output, and so forth. Every language has different header files (such as C, JAVA, Python, and C++). In this article, header files are explained mainly in the context of the C/C++ language.