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RELATIONS AND FUNCTIONS 31 18. Let f:R →...

RELATIONS AND FUNCTIONS 31 18. Let f:R → R be the Signum Function defined as 1, x>0 f(x) = { 0, x=0 -1, x<0 and g: R R be the Greatest Integer Function given by g(x) = [x], where [x] is greatest integer less than or equal to x. Then, does fog and gof coincide in (0, 1]? an the set a h are

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