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What brand is TKOD clothing?
(1) set point D(x, y), then X = | OD | COS60 = 4× 12 = 2, Y = | OD | SIN60 = 23, ∴ point d (2,23).

∴ The abscissa of point C =2+2=4, and the ordinate =23, that is, C (4 4,23).

①∶kod = tan 60 = 3, and the straight line OD equation is y = 3x.

②∫BC∨od, ∴ KBC = KOD = 3, and the equation of straight line BC is y = praised and trampled. What is your evaluation of this answer? Put away your comments and recommend lawyer services: If your problem is not solved, please describe your problem in detail and provide free professional consultation through Baidu Legal Pro. Other similar problems 2010-1-10 It is known that the parallelogram ABCD, AC, BD intersect O, E is a point outside the parallelogram, ∠ AEC = it is known that the parallelogram ABCD is a rectangle 7120/kloc. As shown in the figure, the quadrilateral ABCD is a parallelogram, and the intersection of AC and BD is O, ∠1= ∠ 2,782012-12. BF is perpendicular to CD at f, OB= 1.5, AD=4. Find DC and BF 412012-15. Quadrilateral ABCD is a parallelogram, AC and BD intersect at point O, and DB⊥AD is at d,. AD=4 to find DC and BF 582011-05-16. As shown in the figure, in parallelogram ABCD, AC and BD intersect at point O, and E is a point outside the parallelogram ABCD. Verification: 1 162020-03-05 parallelogram ABCD, BD=2AD, E\F\G are the midpoints of CD\OA\OB respectively, and the verification triangle EFG is an isosceles triangle 420 13-09-24, as shown in the figure. The endpoint is DE⊥OC4. Let me recommend it to you: especially F.context('cmsRight', [{'URL':'/d 01373f082025aaf51aa256e9edab64034f/. 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 ':' ',}]); Why is the cost of cancer treatment getting higher and higher? 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? 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 = 17 19739295;