Write a c program called file1.c Program file1.c uses these: (a) fork() to launch another process. (b) exec() to replace the program driving this process, while supplying arguments to file2.c to complete its execution. (c) wait() to complete the execution of the child process. (d) file1.c takes two arguments x( a number less than 1) and n (number of terms to be added, 1 or more). For example: file1 0.5 5 (e) When the child process finishes, the parent prints: Parent(PID=yyy) : Done

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