∵ In regular prism ABC-A1B1C1,plane ABC⊥ plane BCC 1B 1, ∴AO⊥ plane bcc1.
With the midpoint of B 1C 1 as O 1, O as the origin, OB, OO 1, and the direction of OA as the positive direction of X, Y and Z axes, a spatial rectangular coordinate system is established.
So b (2 2,0,0), d (? 2，2.0)，A 1(0，4，23)，A(0，0，23)，B 1(2，4，0)。
∴AB 1=(2,4？ 23)，BD=(？ 4, 2, 0), I praised them all and stepped on them. What is your evaluation of this answer? Put away comments//high quality or satisfaction or special types or recommended answers dottimewindow.iperformance & window.iperformance.mark ('c _ best',+newdate); Lawyer recommendation service: If your problem has not been solved, please describe your problem in detail and provide free professional consultation through Baidu Law Professional Edition. Other similar problems 2022- 1 1-20 in the regular triangular prism ABC-a1b1,all sides are 2, and d is CC 1. On February 3, 2023, all sides of ABC-A1B1C1are 2, and D is the midpoint of CC 1. Find one of the normal vectors of plane A 1BD, which is called ABC-A 1b in 2023-02-03. 20 17-09-2 1(20 14? As shown in the figure, in the regular triangular prism ABC-a1b1c1,e and f are the midpoint of BB 1 and AC respectively. (1) verification: BF∑ plane a1EC; ; 2320 13-02-05 As shown in the figure, all sides of the regular triangular prism ABC-a1b1are 2. D is the midpoint of CC 1,142011-02-15 regular triangular prism ABC-a1b/kloc1,and all sides. +0. As shown in the figure, it is known that all sides of regular triangular prism ABC-a1b1c1are 2, and d and e are the midpoints of CC 1 and A18-respectively. Zhengzhou No.2 model) As shown in the figure, all sides of the regular triangular prism ABC-a1b1c1are 2, and d is the midpoint of CC 1. (1) verification: AB 1⊥ surface a1BD; ; (7 recommended to you: I especially recommend F.context('cmsRight', [{'URL':'/d01373f082025aaf511aa256e9edab64034f1a07? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId':'A24KA00562 '，}，{ ' URL ':/s？ word = % E6 % AC % A7 % E6 % B4 % B2 % E6 % 9D % AF & sa = searchpromo _ ozb _ zhidao _ tuijian '，' src ':'/3 BF 33 a 87 e 950352 AAF 5 df 4954 143 fbf2b 2 1 18 b6b？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId ':' '，}])； The price of electric cars has dropped many times. Is the quality guaranteed? What impact will the "network toilet" have? Is Huaqiang North's second-hand mobile phone reliable? Why is the cost of cancer treatment getting higher and higher? I recommend f.context ('recbrand', [{"img": "\/86D6277F9E2F07083523F69DFB 24B 899A901F20d? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto "，" url":"/hm.js？ 6859 ce 5a af 00 FB 00387 e 6434 E4 FCC 925 "； var s = document . getelementsbytagname(" script ")[0]； s.parentNode.insertBefore(hm，s)； })(); window . TT = 1720 126867；