String of Symbols
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Suppose f is a function that returns the result of reversing the string of symbols given as its input, and g is a function that returns the concatenation of the two strings given as its input. If x is the string abcd, what is returned by g(f(x),x)? Explain your answer.
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This answer solves string of symbols.
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To do g(y), the y should be clear. It means that first of all the value of f(x) which is not clear should be detemined which x="abcd" => f(x)= "dcba". then both arguments of g(f(x),y) are ...
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