Ответы
Ответ дал:
0
M(7;-9;5)
N(0;-9-5)∈yz
![|MN|= sqrt{(0-7) ^{2}+(-9-(-9)) ^{2} +(5-5) ^{2} } =7 |MN|= sqrt{(0-7) ^{2}+(-9-(-9)) ^{2} +(5-5) ^{2} } =7](https://tex.z-dn.net/?f=%7CMN%7C%3D+sqrt%7B%280-7%29+%5E%7B2%7D%2B%28-9-%28-9%29%29+%5E%7B2%7D+%2B%285-5%29+%5E%7B2%7D++%7D+%3D7)
K(7;0;5)∈xz
![|KM|= sqrt{(7-7) ^{2}+(0-(-9)) ^{2} +(5-5) ^{2} } =9 |KM|= sqrt{(7-7) ^{2}+(0-(-9)) ^{2} +(5-5) ^{2} } =9](https://tex.z-dn.net/?f=%7CKM%7C%3D+sqrt%7B%287-7%29+%5E%7B2%7D%2B%280-%28-9%29%29+%5E%7B2%7D+%2B%285-5%29+%5E%7B2%7D++%7D+%3D9)
L(7;-9;0)∈xy
![|LM|= sqrt{(7-7) ^{2}+(-9-(-9)) ^{2} +(5-0) ^{2} } =5 |LM|= sqrt{(7-7) ^{2}+(-9-(-9)) ^{2} +(5-0) ^{2} } =5](https://tex.z-dn.net/?f=%7CLM%7C%3D+sqrt%7B%287-7%29+%5E%7B2%7D%2B%28-9-%28-9%29%29+%5E%7B2%7D++%2B%285-0%29+%5E%7B2%7D+%7D+%3D5)
ответ: до плоскости ху =5, до плоскости xz=9, до плоскости yz=7
N(0;-9-5)∈yz
K(7;0;5)∈xz
L(7;-9;0)∈xy
ответ: до плоскости ху =5, до плоскости xz=9, до плоскости yz=7
Вас заинтересует
1 год назад
1 год назад
6 лет назад
8 лет назад
9 лет назад