Trong không gian hệ tọa độ
, cho
;
và mặt phẳng
. Viết phương trình mặt phẳng
qua
và vuông góc với
![img1](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img1.png)
![img2](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img2.png)
![img3](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img3.png)
![img4](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img4.png)
![img5](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img5.png)
![img6](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img6.png)
![img7](https://cungthi.online/upload/questionbank3/eduquestion/20194911899313681371/obj20194911899313681371681371_images/obj20194911899313681371681371_img7.png)
A.
B.
C.
D.
Đáp án và lời giải
Đáp án:B
Lời giải:
Phân tích:
Vậy
.
Đáp án đúng là B