Mathematics, 07.02.2021 08:40 TamB01
Let X be a topological space and let C and U be subsets of X. Define C to be closed if C contains all its limit points and define U to be open if every point p β U has a neighborhood which is contained in U. Assuming these definitions show that the following statements are equivalent for a subset S of X. i) S is closed in X; ii) X β S is open in X; iii) S = [S].
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Mathematics, 20.06.2019 18:04
Complete the square to determine the minimum or maximum value of the function defined by the expression. x2 β 12x β 2 a) maximum value at 38 b) minimum value at 38 c) maximum value at β38 d) minimum value at β38
Answers: 3
Mathematics, 21.06.2019 20:10
Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)
Answers: 3
Mathematics, 22.06.2019 01:30
Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2
Answers: 1
Let X be a topological space and let C and U be subsets of X. Define C to be closed if C contains al...
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