Mathematics, 16.06.2021 16:20 luhmama
Cho hàm số f(x, y) = x^2-2y^2+2x có đồ thị là mặt cong S. Tìm điểm M trên mặt S sao cho tiếp diện của mặt S tại M vuông góc với trục Oz.
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Does anyone know how to do geometryme with this problem
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Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
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Mathematics, 22.06.2019 00:20
Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps
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Cho hàm số f(x, y) = x^2-2y^2+2x có đồ thị là mặt cong S. Tìm điểm M trên
mặt S sao cho tiếp diện c...
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