1.$1.$ Using C++,$++,$ Write a program to covert a number among $3$ numbering system $$ binary, decimal, and hexadecimal. The program should allow the user to enter a number with the base and convert to the other $2$ different bases. Please do error checking for input. $2$ Explain all the process involved. 

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It seems like your question is a little scrambled due to incorrect formatting but I can understand that you want to write a program in C to convert a number among three numbering systems binary decima... View the full answer