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Question:
let f (x) =(x) and g (x) = modulus of x. find 1)(gof)(-5/3) -( fog)(-5/3) 2)(gof)(5/3) - (fog)(5/3)
Answer:

The function f and g are defined as:

f(x) = [x] and g(x) = |x|

1. (gof)(-5/3) - (fog)*(-5/3) = g{f(-5/3)} - f{g(-5/3)}

                                          = g([-5/3]) - f(|-5/3|)

                                          = g(-2) - f(5/3) 

                                          = |-2| - [5/3]

                                          = 2 - 1

                                          = 1

2. (gof)(5/3) - (fog)*(5/3) = g{f(5/3)} - f{g(5/3)}

                                       = g([5/3]) - f(|5/3|)

                                       = g(1) - f(5/3) 

                                       = 1 - [5/3]

                                       = 1 - 1

                                       = 0

  

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