Mathematics, 25.07.2021 19:20 divanov
Cho hình chóp SABC là tam giác cạnh đều bằng a tam giác SAB cân tại s và nằm trong mặt phẳng vuông góc với đáy SC tạo với đáy một góc 60 độ gọi Denta là góc giữa hai mặt phẳng SAB và ABC a Tính khoảng cách từ C đến AB b tính tan của Delta tính thể tích của khối
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Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?
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Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.
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Cho hình chóp SABC là tam giác cạnh đều bằng a tam giác SAB cân tại s và nằm trong mặt phẳng vuông g...
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