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Definition of small O-notation

See the attach file for problem. Please read R as R+ Question : Prove that ! ( ) n n ∈ο n by using the definition of the small o- notation. Definition: Let : N →R∪{0}, where ∫ N is the set of all non-negative integers: R is the set of all positive real numbers. f 0 0 o( f )={ g : N →R ∪{0}|∀c∈R,∃n

C programming: parameter passing

Need a C program that has a declaration in main () to store the following numbers into an array named rates:2.3,3.3,4.4,5.5,6.0. There should be a function call to show () that accepts rates in a parameter named rates and then displays the numbers using the pointer notation *(rates + i).

C Programming

I need to create a text file and then read it from my C program. I haven't a clue how to get started. The examples in my book do not work or either I'm doing something wrong.