shiny9362
23.07.2021 •
Mathematics
Bài 5. Cho hình chóp S ABCD . , có đáy là hình bình hành tâm O. Gọi M N, lần lượt là trung
điểm của SB và SC , lấy điểm P SA .
a) Tìm giao tuyến SAB và SCD.
b) Tìm giao điểm SD và MNP .
c) Tìm thiết diện hình chóp và mặt phẳng MNP . Thiết diện là hình gì?
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Ответ:
Multiplying any real number by it’s reciprocal will result in 1.
This is why a reciprocal of a number is called it’s multiplicative inverse.
The reciprocal of zero is 1/0 and is undefined because dividing by zero is not valid.