Q. Assume that (R,T) is the usual Euclidean topological space. Let ([1,6], T1,61) be the relative topology on [1,6] induced by T. Then the interval set (3,6 a. is open and not closed in ([1,6],...

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Extracted text: Q. Assume that (R,T) is the usual Euclidean topological space. Let ([1,6], T1,61) be the relative topology on [1,6] induced by T. Then the interval set (3,6 a. is open and not closed in ([1,6], T1,6|). b. is closed and not open in ([1,6), T1,6]). c. is clopen in ([1,6], T¡1,6). d. is neither open nor closed in ([1,6], T1,6). a d